Delaware USA weather data
Delaware USA Weather Data, Plant Disease Risk and Degree-Day Models
All Available Networks - other tables for DE include: CWOP/APRS, METAR, see our homepage.
Interactive degree-day maps
Delaware USA base 32 degree-days to date
Degree-day & Phenology Model Calculator
 Also try the full-featured calculator/DD model
Select model: 
Thresholds: lower: °F   upper: °F (or celsius °C:)
  Calc. method:
Start (biofix) date:   End date:   
 Forecast type:   
Statewide Disease Alert Maps: tomato-potato Smith late blight, Tomcast DSV, fire blight, soybean rust
Disease Alert Movies: fireblight: 2010 2011 2012 2013
Data table - to SORT click on headers:
# Location linked to
hourly weather,
plant disease models and
forecasts
using
"Mypest Page"
 
County
Re-
cent
data QA
Fore-
cast
based
virt
data
Nearby
station
based
virt
data

Station code,
links to
NWS recent
weather

Links to
NWS fore-
casts
 
Net-
work
Elev. (ft)
 
Lat./ Long.
(Dec. Deg.)
 
Max-min temperature data and degree-days
(click radio button to calc.)

10 yr
avgs

30 yr
avgs

nmme
fcast

cfs
fcast
1 Bear DW3705 New Castle
0
na
na
na
na
D3705
map
zone
digital
CWOP/APRSWX
80
 39.59167
-75.73250
2018
2014
2013
2012
AVG AVG nmme cfs
2 Blackbird Cr Townsend New Castle
99
na
na
na
na
DE003
map
zone
digital
DEOS
49
 39.39528
-75.63167
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
3 BLACKBIRD New Castle
97
na
na
na
na
BLKD1
map
zone
digital
RAWS
70
 39.32556
-75.73056
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
AVG AVG nmme cfs
4 Brandywine Cr Wilmingt Chester
95
na
na
na
na
DE002
map
zone
digital
DEOS
427
 39.80250
-75.60694
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
5 Brandywine Shoal Light
48
na
na
na
na
BRND1
map
zone
digital
NOS-PORTS
0
 38.98667
-75.11306
2018
2017
2016
2015
2014
2012
2011
2010
2009
AVG AVG nmme cfs
6 Broad Creek Laurel Sussex
98
na
na
na
na
DE013
map
zone
digital
DEOS
28
 38.54139
-75.59250
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
7 Buntings Branch Selbyv Sussex
0
na
na
na
na
DE019
map
zone
digital
DEOS
27
 38.47139
-75.21444
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
8 C and D Canal Bridge New Castle C
0
na
na
na
na
DT001
map
zone
digital
DEDOT
121
 39.54472
-75.65139
2018
2016
2015
2014
AVG AVG nmme cfs
9 Cedar Creek Ellendale Sussex
100
na
na
na
na
DE017
map
zone
digital
DEOS
51
 38.80806
-75.42694
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
10 Chester River Kenton Kent
97
na
na
na
na
DE006
map
zone
digital
DEOS
56
 39.24139
-75.74056
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
11 Choptank River Felton Kent
0
na
na
na
na
DE024
map
zone
digital
DEOS
55
 39.03750
-75.72944
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
12 Christina River Newark New Castle
98
na
na
na
na
DE001
map
zone
digital
DEOS
60
 39.60583
-75.72667
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
13 Deep Creek Georgetown Sussex Count
71
na
na
na
na
DE011
map
zone
digital
DEOS
52
 38.59444
-75.43667
2018
2017
2016
2015
2014
AVG AVG nmme cfs
14 Deep Creek Georgetown Sussex
100
na
na
na
na
DE014
map
zone
digital
DEOS
46
 38.63583
-75.45472
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
15 Delaware City New Castle
45
na
na
na
na
DELD1
map
zone
digital
NOS-PORTS
0
 39.58167
-75.58806
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
16 Delmar CW4197 Sussex
0
na
na
na
na
C4197
map
zone
digital
CWOP/APRSWX
56
 38.48611
-75.53306
2018
2014
2013
2012
2011
2010
2009
2008
2007
AVG AVG nmme cfs
17 Dover Air Force Base Kent
93
na
na
na
na
KDOV
map
zone
digital
METAR
30
 39.13306
-75.46667
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
AVG AVG nmme cfs
18 Dover CW6404 Kent
99
na
na
na
na
C6404
map
zone
digital
CWOP/APRSWX
33
 39.16556
-75.60056
2018
2017
2016
2015
2014
2013
2010
2009
2008
AVG AVG nmme cfs
19 Hockessin DW8324 Chester Coun
79
na
na
na
na
D8324
map
zone
digital
CWOP/APRSWX
233
 39.75111
-75.68500
2018
2017
2016
2015
2014
AVG AVG nmme cfs
20 Seaford DW8780 Sussex Count
94
na
na
na
na
D8780
map
zone
digital
CWOP/APRSWX
26
 38.64500
-75.62611
2018
2017
2016
2015
2014
AVG AVG nmme cfs
21 Newark DW9234 New Castle C
96
na
na
na
na
D9234
map
zone
digital
CWOP/APRSWX
121
 39.65306
-75.75694
2018
2017
2016
2015
2014
AVG AVG nmme cfs
22 Rehoboth Beach EW0496 Sussex Count
100
na
na
na
na
E0496
map
zone
digital
CWOP/APRSWX
20
 38.70028
-75.09694
2018
2017
2016
2015
2014
AVG AVG nmme cfs
23 Glasgow EW0771 New Castle C
91
na
na
na
na
E0771
map
zone
digital
CWOP/APRSWX
276
 39.60889
-75.75917
2018
2017
2016
2015
AVG AVG nmme cfs
24 Selbyville EW1653 Sussex Count
100
na
na
na
na
E1653
map
zone
digital
CWOP/APRSWX
20
 38.47722
-75.18028
2018
2017
2016
2015
AVG AVG nmme cfs
25 Bellevue Hills EW2337 Chester Coun
80
na
na
na
na
E2337
map
zone
digital
CWOP/APRSWX
102
 39.77556
-75.48861
2018
2017
2016
2015
AVG AVG nmme cfs
26 Felton EW5390 Kent County
97
na
na
na
na
E5390
map
zone
digital
CWOP/APRSWX
20
 39.03306
-75.51667
2018
2017
2016
2015
AVG AVG nmme cfs
27 Long Neck EW6299 Sussex Count
89
na
na
na
na
E6299
map
zone
digital
CWOP/APRSWX
7
 38.62667
-75.11389
2018
2017
2016
2015
AVG AVG nmme cfs
28 Greenwood EW7993 Sussex Count
100
na
na
na
na
E7993
map
zone
digital
CWOP/APRSWX
45
 38.77833
-75.58222
2018
2017
2016
2015
-
AVG nmme cfs
29 Newark EW9357 New Castle C
90
na
na
na
na
E9357
map
zone
digital
CWOP/APRSWX
321
 39.70917
-75.77750
2018
2017
-
AVG nmme cfs
30 Lewes EW9733 Sussex Count
100
na
na
na
na
E9733
map
zone
digital
CWOP/APRSWX
20
 38.75611
-75.20278
2018
2017
-
AVG nmme cfs
31 Milton EW9904 Sussex Count
100
na
na
na
na
E9904
map
zone
digital
CWOP/APRSWX
24
 38.75056
-75.24806
2018
2017
-
AVG nmme cfs
32 Georgetown DW5341 Sussex
0
na
na
na
na
D5341
map
zone
digital
CWOP/APRSWX
46
 38.73472
-75.47944
2018
2013
2012
AVG AVG nmme cfs
33 Georgetown Sussex Co A Sussex
90
na
na
na
na
KGED
map
zone
digital
METAR
46
 38.68944
-75.36222
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
AVG AVG nmme cfs
34 Hockessin N3PL Chester
93
na
na
na
na
AR506
map
zone
digital
CWOP/APRSWX
305
 39.79806
-75.67556
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
AVG AVG nmme cfs
35 I495 SB exit 2 Sussex Count
0
na
na
na
na
DT002
map
zone
digital
DEDOT
39
 38.72056
-75.54000
2018
2016
2015
2014
AVG AVG nmme cfs
36 I95 and-896 New Castle C
0
na
na
na
na
DT015
map
zone
digital
DEDOT
79
 39.64750
-75.74611
2018
2016
2015
2014
AVG AVG nmme cfs
37 I95 and Marsh Road Chester Coun
0
na
na
na
na
DT014
map
zone
digital
DEDOT
230
 39.78000
-75.50583
2018
2016
2015
2014
AVG AVG nmme cfs
38 Indian River Millsboro Sussex
96
na
na
na
na
DE018
map
zone
digital
DEOS
31
 38.62917
-75.32194
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
39 Indian Rvr Bay Dewey B Sussex
100
na
na
na
na
DE020
map
zone
digital
DEOS
8
 38.63306
-75.06639
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
40 Indian Rvr Inlet Brdg Sussex Count
0
na
na
na
na
DT012
map
zone
digital
DEDOT
6
 38.60139
-75.06194
2018
2015
2014
AVG AVG nmme cfs
41 LewesCape Henlopen Sussex Count
99
na
na
na
na
DE049
map
zone
digital
DEOS
23
 38.77028
-75.08528
2018
2017
2016
2015
AVG AVG nmme cfs
42 Lewes DW2778 Sussex
0
na
na
na
na
D2778
map
zone
digital
CWOP/APRSWX
35
 38.78694
-75.15417
2018
2017
2016
2015
2014
2013
2012
2011
2010
AVG AVG nmme cfs
43 Lewes Sussex
47
na
na
na
na
LWSD1
map
zone
digital
NOS-NWLON
0
 38.78167
-75.12000
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
44 KB1EJH13 Lincoln Sussex Count
100
na
na
na
na
AU865
map
zone
digital
CWOP/APRSWX
36
 38.82917
-75.32500
2018
2017
2016
2015
AVG AVG nmme cfs
45 Little Assawoman Bay B Sussex
100
na
na
na
na
DE009
map
zone
digital
DEOS
6
 38.53889
-75.05417
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
46 Little Assawoman Bay B Sussex
100
na
na
na
na
DE010
map
zone
digital
DEOS
1
 38.54639
-75.06250
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
47 Marshyhope Cr Greenwoo Kent
99
na
na
na
na
DE023
map
zone
digital
DEOS
43
 38.83139
-75.67556
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
48 Marydel CW3677 Kent County
0
na
na
na
na
C3677
map
zone
digital
CWOP/APRSWX
16
 39.11250
-75.74528
2018
2010
2008
2007
AVG AVG nmme cfs
49 MillsboroLong Neck Sussex Count
93
na
na
na
na
DE048
map
zone
digital
DEOS
10
 38.61583
-75.11806
2018
2017
2016
2015
AVG AVG nmme cfs
50 Mispillion Rvr Milford Kent
47
na
na
na
na
DE016
map
zone
digital
DEOS
37
 38.88167
-75.43972
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
51 Murderkill River Viola Kent
0
na
na
na
na
DE027
map
zone
digital
DEOS
55
 39.04333
-75.57028
2018
2014
2013
2012
AVG AVG nmme cfs
52 Murderkill Rvr Harring Kent
98
na
na
na
na
DE025
map
zone
digital
DEOS
59
 38.91111
-75.57667
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
53 Naamans Creek Claymont Chester Coun
96
na
na
na
na
DE038
map
zone
digital
DEOS
102
 39.80917
-75.45556
2018
2017
2016
2015
2014
AVG AVG nmme cfs
54 Nanticoke Rvr Brdgvill Sussex
97
na
na
na
na
DE008
map
zone
digital
DEOS
37
 38.72056
-75.58833
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
55 NarkWhite Clay Cr Chester Coun
92
na
na
na
na
DE039
map
zone
digital
DEOS
279
 39.72917
-75.73083
2018
2017
2016
2015
2014
AVG AVG nmme cfs
56 Newark WB3CVN New Castle
0
na
na
na
na
AR962
map
zone
digital
CWOP/APRSWX
70
 39.61528
-75.70917
2018
2016
2015
2014
2013
2012
2011
2010
2009
2007
AVG AVG nmme cfs
57 PRIME HOOK Sussex
0
na
na
na
na
PRID1
map
zone
digital
RAWS
15
 38.82972
-75.24806
2018
2015
2014
2013
2012
2011
2010
2009
2008
2007
AVG AVG nmme cfs
58 Red Clay Cr Hockessin Chester
99
na
na
na
na
DE000
map
zone
digital
DEOS
294
 39.78667
-75.64667
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
59 Red Clay Cr Wilmington Chester Coun
99
na
na
na
na
DE035
map
zone
digital
DEOS
128
 39.73806
-75.62806
2018
2017
2016
2015
2014
AVG AVG nmme cfs
60 REDDEN Sussex
98
na
na
na
na
REDD1
map
zone
digital
RAWS
50
 38.74167
-75.41528
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
AVG AVG nmme cfs
61 Reedy Point New Castle
42
na
na
na
na
RDYD1
map
zone
digital
NOS-NWLON
0
 39.55806
-75.57306
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
62 Rehoboth Bay Milton Sussex
100
na
na
na
na
DE015
map
zone
digital
DEOS
33
 38.67833
-75.24639
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
63 Rehoboth Beach CW1667 Sussex
0
na
na
na
na
C1667
map
zone
digital
CWOP/APRSWX
20
 38.72417
-75.10111
2018
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
AVG AVG nmme cfs
64 Rehoboth Beach Sussex
100
na
na
na
na
DE021
map
zone
digital
DEOS
8
 38.72056
-75.07667
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
65 RT 1 and 12 New Castle C
0
na
na
na
na
DT009
map
zone
digital
DEDOT
55
 39.29139
-75.59389
2018
2016
2015
2014
AVG AVG nmme cfs
66 RT 1 and 16 Sussex Count
0
na
na
na
na
DT003
map
zone
digital
DEDOT
26
 38.80417
-75.27194
2018
2016
2015
2014
AVG AVG nmme cfs
67 RT 1 and EOC Smyrna New Castle C
0
na
na
na
na
DT004
map
zone
digital
DEDOT
39
 39.31944
-75.60583
2018
2016
2015
2014
AVG AVG nmme cfs
68 RT 113 and 16 Ellendal Sussex Count
0
na
na
na
na
DT008
map
zone
digital
DEDOT
52
 38.80639
-75.43917
2018
2016
2015
2014
AVG AVG nmme cfs
69 RT 13 and 14 Harringto Kent County
0
na
na
na
na
DT005
map
zone
digital
DEDOT
78
 38.92389
-75.56667
2018
2016
2015
2014
AVG AVG nmme cfs
70 RT 13 and Pinetree New Castle C
0
na
na
na
na
DT010
map
zone
digital
DEDOT
78
 39.40694
-75.66194
2018
2016
2015
2014
AVG AVG nmme cfs
71 RT 202 and Naamans Chester Coun
0
na
na
na
na
DT006
map
zone
digital
DEDOT
423
 39.82861
-75.54444
2018
2016
2015
2014
AVG AVG nmme cfs
72 RT 40 and 896 New Castle C
0
na
na
na
na
DT007
map
zone
digital
DEDOT
85
 39.60583
-75.74250
2018
2016
2015
2014
AVG AVG nmme cfs
73 RT 7 and Valley Road Chester Coun
0
na
na
na
na
DT011
map
zone
digital
DEDOT
367
 39.77472
-75.71528
2018
2016
2015
2014
AVG AVG nmme cfs
74 Sassafras Rvr Townsend New Castle
97
na
na
na
na
DE007
map
zone
digital
DEOS
69
 39.39083
-75.74806
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
75 Seaford DW3923 Sussex
94
na
na
na
na
D3923
map
zone
digital
CWOP/APRSWX
33
 38.66278
-75.56528
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
76 Shellpot Cr Wilmington Chester
88
na
na
na
na
DE005
map
zone
digital
DEOS
10
 39.73278
-75.51833
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
77 Shellpot Cr Wilmington Chester Coun
99
na
na
na
na
DE036
map
zone
digital
DEOS
240
 39.77528
-75.52778
2018
2017
2016
2015
2014
AVG AVG nmme cfs
78 Smyrna CW7873 Kent
51
na
na
na
na
C7873
map
zone
digital
CWOP/APRSWX
20
 39.24944
-75.59889
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
79 Smyrna River Smyrna Kent
98
na
na
na
na
DE022
map
zone
digital
DEOS
23
 39.27667
-75.58056
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
80 St Jones River Dover Kent
99
na
na
na
na
DE026
map
zone
digital
DEOS
52
 39.16944
-75.59278
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
81 St Jones Rvr Kitts Hu Kent County
95
na
na
na
na
DE030
map
zone
digital
DEOS
8
 39.08806
-75.43722
2018
2017
2016
2015
2014
AVG AVG nmme cfs
82 US1 and Appoquinimink New Castle C
0
na
na
na
na
DT013
map
zone
digital
DEDOT
10
 39.44139
-75.66333
2018
2016
2015
2014
AVG AVG nmme cfs
83 US13 and Murderkill R Kent County
0
na
na
na
na
DT016
map
zone
digital
DEDOT
27
 38.97528
-75.56722
2018
2016
2015
AVG AVG nmme cfs
84 WB3CVN3 Lewes Sussex Count
0
na
na
na
na
AS902
map
zone
digital
CWOP/APRSWX
6
 38.77889
-75.16333
2018
2017
-
AVG nmme cfs
85 White Clay Cr Nark New Castle
98
na
na
na
na
DE004
map
zone
digital
DEOS
109
 39.66944
-75.75028
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
86 Wicomico River Delmar Sussex
98
na
na
na
na
DE029
map
zone
digital
DEOS
59
 38.46500
-75.45056
2018
2017
2016
2015
2014
2013
2012
AVG AVG nmme cfs
87 Wilmington N Castle Co New Castle
96
na
na
na
na
KILG
map
zone
digital
METAR
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National Plant Diagnostics Network Integrated Plant Protection Center at OSU Oregon State University The PRISM Group at OSU Fox Weather, LLC University of Utah Mesowest Western
 Region Pest Management Center National
 Institute of Food and Agriculture
All data provided "as is" and users assume all risk in its use - see full disclaimer. All NWS derived data is not subject to copyright protection. This site hosted by the Integrated Plant Protection Center at Oregon State University with support from the USDA National Plant Diagnostic Network, various USDA NIFA and RMA grants, and USDA IPM Centers - Western Region. Climate map data provided by OSU PRISM Group, realtime public weather data provided by U. Utah Mesowest and various other networks.
This site on-line since April 5, 1996; last update Dec. 27, 2017
Contact Len Coop, OSU IPPC and Horticulture Dept. at coopl@science.oregonstate.edu or 541-737-5523 if you have any questions about this information.