District of Columbia USA weather data
District of Columbia USA Weather Data, Plant Disease Risk and Degree-Day Models
All Available Networks - other tables for DC include: CWOP/APRS, see our homepage.
Interactive degree-day maps
District of Columbia 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 DCNearRoad Prince Georg
97
na
na
na
na
A3631
map
digital
AIRNOW
36
 38.89472
-76.95333
2024
2023
2022
2021
2020
2019
-
-
nmme
-
2 FW1341 Washington Prince Georg
97
na
na
na
na
F1341
map
digital
CWOP/APRSWX
68
 38.90306
-76.98806
2024
2023
2022
2021
2020
2019
2018
-
-
nmme
-
3 FW6860 Washington Prince Georg
14
na
na
na
na
F6860
map
digital
CWOP/APRSWX
282
 38.85889
-76.95972
2024
2023
2022
2021
-
-
nmme
-
4 FW7745 Washington Prince Georg
94
na
na
na
na
F7745
map
digital
CWOP/APRSWX
82
 38.88278
-76.98694
2024
2023
2022
2021
-
-
nmme
-
5 FW8531 Washington Prince Georg
89
na
na
na
na
F8531
map
digital
CWOP/APRSWX
82
 38.88750
-76.98000
2024
2023
2022
2021
-
-
nmme
-
6 GW3630 WASHINGTON Prince Georg
93
na
na
na
na
G3630
map
digital
CWOP/APRSWX
141
 38.90972
-77.06722
2024
-
-
nmme
-
7 GWU Foggy Bottom Campu Prince Georg
95
na
na
na
na
1852W
map
digital
WEATHERSTEM
72
 38.89611
-77.04361
2024
-
-
nmme
-
8 GWU Mount Vernon Campu Fairfax Coun
94
na
na
na
na
1855W
map
digital
WEATHERSTEM
256
 38.91722
-77.08972
2024
-
-
nmme
-
9 Washington DW4321 Prince Georg
67
na
na
na
na
D4321
map
digital
CWOP/APRSWX
33
 38.82083
-77.05889
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
10 Washington Prince Georg
45
na
na
na
na
WASD2
map
digital
NOS-NWLON
0
 38.87306
-77.02167
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-

[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. 3, 2024
Contact Len Coop, OSU IPPC and Horticulture Dept. at coopl@science.oregonstate.edu or if you have any questions about this information.