California USA weather data
California USA Weather Data, Plant Disease Risk and Degree-Day Models
CALTRANS Network - other tables for CA include: All Networks, CWOP/APRS, CARB, CIMIS, CLR, CNRFC, DRI, HADS, METAR, RAWS, PESTCAST, see our homepage.
Interactive degree-day maps
California 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, fire blight w/2-day forecast, 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 Anderson Grade Siskiyou
97
na
na
na
na
CTAND
map
zone
digital
CALTRANS
2963
 41.79056
-122.58833
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
2 Antlers Shasta
82
na
na
na
na
CTANT
map
zone
digital
CALTRANS
1080
 40.88472
-122.38250
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
3 Black Butte Summit Siskiyou
98
na
na
na
na
CTBBS
map
zone
digital
CALTRANS
3945
 41.35444
-122.35250
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
4 Bogard Rest Area Lassen
74
na
na
na
na
CTBOG
map
zone
digital
CALTRANS
5659
 40.58556
-121.08806
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
5 Brannan Island Rd Sacramento C
44
na
na
na
na
CF106
map
zone
digital
CALTRANS
-12
 38.13583
-121.60917
2021
2020
2019
2018
2016
2015
AVG AVG nmme cfs
6 Buckhorn Sandhouse Trinity
60
na
na
na
na
CTBSN
map
zone
digital
CALTRANS
2707
 40.65444
-122.75444
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
7 Doyle Lassen Count
80
na
na
na
na
CF088
map
zone
digital
CALTRANS
4285
 40.00056
-120.08528
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
8 Dunsmuir Siskiyou
86
na
na
na
na
CTDUN
map
zone
digital
CALTRANS
2500
 41.21000
-122.27444
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
9 Fredonyer Pass East Lassen
70
na
na
na
na
CTFPE
map
zone
digital
CALTRANS
4695
 40.39000
-120.79000
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
10 Fredonyer Pass Summit Lassen
0
na
na
na
na
CTFYP
map
zone
digital
CALTRANS
5701
 40.36028
-120.86528
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
11 Hatchet Mountain Shasta
93
na
na
na
na
CTHAT
map
zone
digital
CALTRANS
4366
 40.85194
-121.76194
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
12 Hilt Siskiyou
94
na
na
na
na
CTHLT
map
zone
digital
CALTRANS
3188
 41.99250
-122.60861
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
13 Hornbrook Siskiyou
93
na
na
na
na
CTHRN
map
zone
digital
CALTRANS
2280
 41.91028
-122.56778
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
14 Janesville Lassen Count
76
na
na
na
na
CF087
map
zone
digital
CALTRANS
4172
 40.29389
-120.50833
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
15 Mer 99 SO La Grand Mariposa Cou
62
na
na
na
na
CF108
map
zone
digital
CALTRANS
201
 37.21306
-120.36250
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
16 Mer 99 SO Mariposa Way Stanislaus C
64
na
na
na
na
CF109
map
zone
digital
CALTRANS
192
 37.24472
-120.40278
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
17 North Weed Siskiyou Cou
97
na
na
na
na
CTWED
map
zone
digital
CALTRANS
3445
 41.42833
-122.39861
2021
2020
2019
2018
2017
2016
2015
2012
2011
2010
2009
AVG AVG nmme cfs
18 Oregon Mountain Summit Trinity
80
na
na
na
na
CTOMS
map
zone
digital
CALTRANS
2854
 40.73917
-122.98028
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
19 Rt 152 San Luis Merced Count
80
na
na
na
na
CF031
map
zone
digital
CALTRANS
264
 37.06194
-121.06000
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
20 Rt 99 @ Armstrong Rd Sacramento C
26
na
na
na
na
CF040
map
zone
digital
CALTRANS
48
 38.06944
-121.26000
2021
2020
2019
2018
2017
AVG AVG nmme cfs
21 Rt 99 @ Crosstown San Joaquin
0
na
na
na
na
CF037
map
zone
digital
CALTRANS
31
 37.96139
-121.24139
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
22 Rt 99 @ Freemont San Joaquin
92
na
na
na
na
CF038
map
zone
digital
CALTRANS
26
 37.97417
-121.24722
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
23 Rt 99 @ Hammer Lane San Joaquin
91
na
na
na
na
CF041
map
zone
digital
CALTRANS
30
 38.02000
-121.25861
2021
2020
2019
2018
2017
AVG
-
nmme
-
24 Rt 99 @ Wilson Way San Joaquin
54
na
na
na
na
CF039
map
zone
digital
CALTRANS
33
 38.00306
-121.25694
2021
2020
2019
2018
2017
AVG AVG nmme cfs
25 Rt 99 Keyes San Joaquin
86
na
na
na
na
CF035
map
zone
digital
CALTRANS
93
 37.55944
-120.91972
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
26 Rt 99 Livingston Stanislaus C
74
na
na
na
na
CF034
map
zone
digital
CALTRANS
141
 37.37444
-120.68333
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
27 Rt 99 Merced Stanislaus C
0
na
na
na
na
CF032
map
zone
digital
CALTRANS
182
 37.26250
-120.42472
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
28 Rt 99 Ripon San Joaquin
92
na
na
na
na
CF036
map
zone
digital
CALTRANS
67
 37.74639
-121.13250
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
29 Rt 99 Turlock Stanislaus C
69
na
na
na
na
CF033
map
zone
digital
CALTRANS
112
 37.46444
-120.82472
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
30 S Clara Cnty 152 Jct 1 Santa Clara
40
na
na
na
na
CF110
map
zone
digital
CALTRANS
300
 36.97694
-121.38083
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
31 Sims Rd Siskiyou Cou
84
na
na
na
na
CF089
map
zone
digital
CALTRANS
1821
 41.07778
-122.35556
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
32 SJ 12 Tower Park Way Sacramento C
41
na
na
na
na
CF107
map
zone
digital
CALTRANS
-14
 38.11528
-121.48500
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
33 SJ 120 EO Airport Way San Joaquin
92
na
na
na
na
CF094
map
zone
digital
CALTRANS
31
 37.78306
-121.24361
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
34 SJ 120 EO Main St San Joaquin
72
na
na
na
na
CF111
map
zone
digital
CALTRANS
39
 37.78333
-121.21111
2021
2020
2019
2018
2017
AVG
-
nmme
-
35 SJ 120 JCT Rte 5 R143 San Joaquin
89
na
na
na
na
CF098
map
zone
digital
CALTRANS
37
 37.78667
-121.30417
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
36 SJ 120 McKinley Ave UC San Joaquin
64
na
na
na
na
CF099
map
zone
digital
CALTRANS
29
 37.78472
-121.27056
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
37 SJ 5 NO Lathrop Rd San Joaquin
90
na
na
na
na
CF092
map
zone
digital
CALTRANS
18
 37.83778
-121.28611
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
38 SJ 5 NO Mathews Rd San Joaquin
92
na
na
na
na
CF095
map
zone
digital
CALTRANS
17
 37.88250
-121.27889
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
39 SJ 5 NO Roth Rd San Joaquin
69
na
na
na
na
CF096
map
zone
digital
CALTRANS
25
 37.85750
-121.28139
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
40 SJ 5 NO Rte 120 San Joaquin
93
na
na
na
na
CF093
map
zone
digital
CALTRANS
28
 37.79083
-121.30083
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
41 SJ 5 SO Louise Ave San Joaquin
95
na
na
na
na
CF097
map
zone
digital
CALTRANS
26
 37.81139
-121.29556
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
42 Snowmans Summit Siskiyou
42
na
na
na
na
CTSNS
map
zone
digital
CALTRANS
4478
 41.26889
-122.21139
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
43 Spring Garden Overhead Lassen
61
na
na
na
na
CTSPG
map
zone
digital
CALTRANS
3860
 39.91167
-120.81167
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs
44 SR139 Perez Modoc County
97
na
na
na
na
CF090
map
zone
digital
CALTRANS
4480
 41.60389
-121.20694
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme cfs
45 Vollmers Shasta Count
88
na
na
na
na
CTVOL
map
zone
digital
CALTRANS
1330
 40.94167
-122.42667
2021
2020
2019
2018
2017
2016
2015
2011
2010
2009
AVG AVG nmme cfs
46 Weed Airport Siskiyou
97
na
na
na
na
CTWDA
map
zone
digital
CALTRANS
2921
 41.47250
-122.45278
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
AVG AVG nmme cfs

[USPEST.ORG/WEA Home] [Intro] [US DD Mapmaker] [Main Table Index] [Links]
Oregon IPM Center at State University National Plant Diagnostics Network 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 Oregon IPM Center at Oregon State University with support from USDA APHIS, various USDA NIFA grants, and USDA Western Region IPM Center. 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 Jan. 2, 2021
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.