California USA weather data
California USA Weather Data, Plant Disease Risk and Degree-Day Models
DRI Network - other tables for CA include: All Networks, CWOP/APRS, CALTRANS, CARB, CIMIS, CLR, CNRFC, 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 Anza Borrego Desert Re San Diego Co
99
na
na
na
na
UCAB
map
digital
DRI
821
 33.25556
-116.40417
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
2 Avalon Sch S Catalina Los Angeles
98
na
na
na
na
CIAV
map
digital
DRI
111
 33.33833
-118.33333
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
AVG AVG nmme
-
3 Big Cr ReserveGatehou Monterey Cou
80
na
na
na
na
UCBC
map
digital
DRI
90
 36.07056
-121.59833
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
4 Blue Oak Ranch Reserve Santa Clara
91
na
na
na
na
UCBO
map
digital
DRI
1885
 37.38167
-121.73639
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
AVG AVG nmme
-
5 Bodega Marine Reserve Sonoma Count
58
na
na
na
na
UCBM
map
digital
DRI
100
 38.31389
-123.06028
2024
2023
2022
2021
2020
2019
2018
2017
AVG AVG nmme
-
6 Bridgeport Valley Mono County
83
na
na
na
na
CBVA
map
digital
DRI
6495
 38.22306
-119.25194
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
7 Donner Trail Elementar Nevada Count
4
na
na
na
na
DDONN
map
digital
DRI
6232
 39.31556
-120.45556
2024
-
-
nmme
-
8 Elliot Chaparral Reser San Diego Co
99
na
na
na
na
UCEL
map
digital
DRI
780
 32.89167
-117.09194
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
AVG AVG
-
-
9 HIGHLANDS PEAK Monterey
86
na
na
na
na
HLPK
map
digital
DRI
2490
 36.06750
-121.55917
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
10 Independence Nye County
32
na
na
na
na
DINDE
map
digital
DRI
3941
 36.80194
-118.19583
2024
-
-
nmme
-
11 Jepson Prairie Reserve Solano Count
98
na
na
na
na
UCJP
map
digital
DRI
35
 38.26806
-121.82778
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG
-
-
12 McLaughlin ReserveKnox Yolo County
91
na
na
na
na
UCMC
map
digital
DRI
1320
 38.82417
-122.33472
2024
2023
2022
2021
-
-
nmme
-
13 Motte Rimrock Reserve Riverside Co
91
na
na
na
na
UCMO
map
digital
DRI
1901
 33.80444
-117.25556
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
AVG AVG nmme
-
14 North Spring Valley White Pine C
95
na
na
na
na
NNSV
map
digital
DRI
5642
 39.45806
-114.50667
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
AVG AVG nmme
-
15 Northstar WX Nevada Count
47
na
na
na
na
DDNSW
map
digital
DRI
8599
 39.24083
-120.14000
2024
2023
2022
2021
-
-
nmme
-
16 PT REYES RCA Marin
99
na
na
na
na
PTRCA
map
digital
DRI
87
 38.09417
-122.95000
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
17 Sedgwick Reserve UCNRS Santa Barbar
97
na
na
na
na
UCSE
map
digital
DRI
1154
 34.69389
-120.04167
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
AVG AVG nmme
-
18 Sorensens ResortHope Douglas Coun
85
na
na
na
na
CSRR
map
digital
DRI
6912
 38.77556
-119.90389
2024
2023
2022
2021
-
-
-
-
19 Stunt Ranch Reserve UC Ventura Coun
97
na
na
na
na
UCSR
map
digital
DRI
1305
 34.09444
-118.65667
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG
-
-
20 Valentine Eern Sierra Mono County
89
na
na
na
na
UCSH
map
digital
DRI
7085
 37.61333
-118.83306
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
21 WHALE POINT Monterey
98
na
na
na
na
WHALE
map
digital
DRI
620
 36.07194
-121.59556
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
22 Whites Landing Los Angeles
25
na
na
na
na
DCIWL
map
digital
DRI
180
 33.38694
-118.37889
2024
-
-
nmme
-
23 Younger Lagoon Reserve Santa Clara
64
na
na
na
na
UCYL
map
digital
DRI
9
 36.94889
-122.06639
2024
2023
2022
2021
-
-
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.