Iowa USA weather data
Iowa USA Weather Data, Plant Disease Risk and Degree-Day Models
IADOT Network - other tables for IA include: All Networks, CWOP/APRS, HADS, METAR, RAWS, see our homepage.
Interactive degree-day maps
Iowa 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 Adair (I80) Cass
53
na
na		 na
na
RDAI4
map
digital
IADOT
1476
 41.49611
-94.72611
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
2 Algona (US18) Kossuth
54
na
na		 na
na
RALI4
map
digital
IADOT
1107
 43.08278
-94.39833
2024
2023
2022
2021
2020
2019
2018
2017
2015
2014
2013
AVG AVG nmme
-
3 Alton (IA10) Sioux
52
na
na		 na
na
RTNI4
map
digital
IADOT
1411
 42.99778
-96.08417
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
4 Altoona (I80US-65) Polk
55
na
na		 na
na
RTOI4
map
digital
IADOT
859
 41.65944
-93.52194
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
5 Ames (I35) Story
54
na
na		 na
na
RAMI4
map
digital
IADOT
1028
 42.03389
-93.57000
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
6 Ankeny (I35) Polk County
55
na
na		 na
na
RAKI4
map
digital
IADOT
865
 41.76167
-93.56944
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
7 Avoca (I80) Pottawattami
55
na
na		 na
na
RAVI4
map
digital
IADOT
1239
 41.49806
-95.29139
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
8 Burlington (US34) Des Moines
23
na
na		 na
na
RBUI4
map
digital
IADOT
716
 40.81278
-91.09917
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
9 Cantril Van Buren Co
49
na
na		 na
na
RCLI4
map
digital
IADOT
676
 40.65778
-92.06194
2024
-
-
nmme
-
10 Carroll (US30) Carroll Coun
50
na
na		 na
na
RCAI4
map
digital
IADOT
1276
 42.07833
-94.89722
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
AVG AVG nmme
-
11 Cedar Rapids (I380) Linn
54
na
na		 na
na
RCDI4
map
digital
IADOT
774
 41.97778
-91.67444
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
12 Cedar Rapids (US30) Linn
43
na
na		 na
na
RCII4
map
digital
IADOT
807
 41.92972
-91.68361
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
13 Cedar Rapids (US30) Linn
51
na
na		 na
na
RCRI4
map
digital
IADOT
761
 41.92583
-91.54972
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
14 Centerville (IA2) Appanoose
53
na
na		 na
na
RCNI4
map
digital
IADOT
969
 40.73944
-93.00250
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
15 Colfax (I80) Jasper
54
na
na		 na
na
RCFI4
map
digital
IADOT
810
 41.68917
-93.26472
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
16 Council Bluffs (I80) Pottawattami
96
na
na		 na
na
RCBI4
map
digital
IADOT
880
 41.23250
-95.86611
2024
2023
2022
2021
2020
2019
2018
2017
2013
AVG AVG nmme
-
17 Council Bluffs DMS Pottawattami
56
na
na		 na
na
RCCI4
map
digital
IADOT
1020
 41.26028
-95.80306
2024
-
-
-
-
18 Creston (US34) Union
55
na
na		 na
na
RCEI4
map
digital
IADOT
1275
 41.04972
-94.30778
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
19 Davenport (I80I-280) Rock Island
57
na
na		 na
na
RDVI4
map
digital
IADOT
677
 41.60222
-90.67750
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
20 De Soto (I80US-169) Dallas
77
na
na		 na
na
RDEI4
map
digital
IADOT
957
 41.54139
-94.01111
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
21 De Witt (US30US-61) Clinton
56
na
na		 na
na
RDWI4
map
digital
IADOT
789
 41.82611
-90.57028
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
22 Denison Crawford Cou
37
na
na		 na
na
RDNI4
map
digital
IADOT
1385
 41.91556
-95.34389
2024
-
-
nmme
-
23 Des Moines (I235) Polk
55
na
na		 na
na
RDMI4
map
digital
IADOT
822
 41.59556
-93.61139
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
24 Dubuque (US20) Dubuque
32
na
na		 na
na
RDBI4
map
digital
IADOT
820
 42.49028
-90.73083
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
25 Early Sac County
59
na
na		 na
na
ERYI4
map
digital
IADOT
1355
 42.47222
-95.14889
2024
-
-
nmme
-
26 Estherville Emmet County
61
na
na		 na
na
RETI4
map
digital
IADOT
1276
 43.39917
-94.79722
2024
-
-
nmme
-
27 Fort Dodge (US20) Webster
51
na
na		 na
na
RFDI4
map
digital
IADOT
939
 42.44611
-94.18333
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
28 Grimes Polk County
57
na
na		 na
na
RGAI4
map
digital
IADOT
856
 41.73944
-93.77556
2024
-
-
-
-
29 Grinnell (I80) Poweshiek
88
na
na		 na
na
RGRI4
map
digital
IADOT
923
 41.69722
-92.72556
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
30 Hanlontown (I35) Worth
54
na
na		 na
na
RHAI4
map
digital
IADOT
1094
 43.39194
-93.34972
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
31 Hawkeye Fayette Coun
60
na
na		 na
na
HKYI4
map
digital
IADOT
1076
 42.96472
-91.95333
2024
-
-
nmme
-
32 I80 at I-380 Johnson Coun
92
na
na		 na
na
RTFI4
map
digital
IADOT
787
 41.69361
-91.64444
2024
-
-
nmme
-
33 Ida Grove (HW 59) Ida
54
na
na		 na
na
RIGI4
map
digital
IADOT
1234
 42.35139
-95.47806
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
34 Iowa City (US218) Johnson
51
na
na		 na
na
RIAI4
map
digital
IADOT
834
 41.65722
-91.59861
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
35 Iowa City I80 Johnson Coun
56
na
na		 na
na
RIOI4
map
digital
IADOT
761
 41.68889
-91.58111
2024
-
Virtual
-
-
36 Jefferson (IA4) Greene
53
na
na		 na
na
RJFI4
map
digital
IADOT
1017
 42.05167
-94.37806
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
37 Leon (I35)IA-2) Decatur
51
na
na		 na
na
RLEI4
map
digital
IADOT
1146
 40.73861
-93.84167
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
38 Manchester (US20) Delaware
51
na
na		 na
na
RMNI4
map
digital
IADOT
1014
 42.47083
-91.44722
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
39 Maquoketa US61IA-64 Jackson
0
na
na		 na
na
RMQI4
map
digital
IADOT
824
 42.06833
-90.68333
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
40 Marshalltown (US30) Marshall
46
na
na		 na
na
RMTI4
map
digital
IADOT
956
 42.00361
-92.96167
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
41 Mason City (I35) Cerro Gordo
55
na
na		 na
na
RMCI4
map
digital
IADOT
1236
 43.03778
-93.34167
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
42 Mason City US18 Cerro Gordo
60
na
na		 na
na
MSYI4
map
digital
IADOT
1096
 43.11139
-93.12278
2024
-
-
nmme
-
43 Missouri Valley (I29) Harrison
56
na
na		 na
na
RMVI4
map
digital
IADOT
1016
 41.54944
-95.91722
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
44 Mount Pleasant US218 Henry
51
na
na		 na
na
RMPI4
map
digital
IADOT
436
 40.89556
-91.55528
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
45 New Hampton (US18) Chickasaw
52
na
na		 na
na
RNHI4
map
digital
IADOT
1073
 43.06694
-92.45917
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
46 Osceola (I35) Clarke
52
na
na		 na
na
ROSI4
map
digital
IADOT
1096
 41.02556
-93.79778
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
47 Ottumwa (US63) Wapello
55
na
na		 na
na
ROTI4
map
digital
IADOT
642
 41.01667
-92.42111
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
48 Pella (IA163) Mahaska
0
na
na		 na
na
RPLI4
map
digital
IADOT
891
 41.39000
-92.87250
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
49 Plainfield (HW 218) Bremer Count
41
na
na		 na
na
RPFI4
map
digital
IADOT
965
 42.83306
-92.53694
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
AVG AVG nmme
-
50 Red Oak (US34US-71) Montgomery
53
na
na		 na
na
RROI4
map
digital
IADOT
954
 40.97972
-94.98361
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
51 Rockwell City Calhoun Coun
57
na
na		 na
na
RRWI4
map
digital
IADOT
1198
 42.45000
-94.67000
2024
-
-
nmme
-
52 Saratoga Howard Count
60
na
na		 na
na
SRGI4
map
digital
IADOT
1348
 43.37056
-92.47056
2024
-
-
nmme
-
53 Sibley (HW 60HW 9) Osceola
55
na
na		 na
na
RSYI4
map
digital
IADOT
1574
 43.43333
-95.71472
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
54 Sidney (I29IA-2) Fremont
53
na
na		 na
na
RSDI4
map
digital
IADOT
944
 40.68972
-95.78472
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
55 Sioux City (I29) Woodbury
64
na
na		 na
na
RSCI4
map
digital
IADOT
1196
 42.48306
-96.39028
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
56 Sioux City Woodbury Cou
60
na
na		 na
na
RSMI4
map
digital
IADOT
1135
 42.54944
-96.34778
2024
-
-
nmme
-
57 Sloan Monona Count
61
na
na		 na
na
RSOI4
map
digital
IADOT
1053
 42.17111
-96.22944
2024
-
-
nmme
-
58 Steamboat Rock (US20) Hardin
49
na
na		 na
na
RSBI4
map
digital
IADOT
1142
 42.45333
-93.05806
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
59 Storm Lk US71IA-3 Buena Vista
50
na
na		 na
na
RSLI4
map
digital
IADOT
1330
 42.74750
-95.15139
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
60 Tipton (I80) Cedar
55
na
na		 na
na
RTPI4
map
digital
IADOT
776
 41.64500
-91.12639
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
61 Urbana (I380) Buchanan
51
na
na		 na
na
RURI4
map
digital
IADOT
992
 42.31250
-91.97556
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
62 US30 Mt Vernon Linn County
49
na
na		 na
na
RVNI4
map
digital
IADOT
820
 41.91139
-91.42250
2024
-
-
nmme
-
63 W of Eddyville HW 137 Wapello
55
na
na		 na
na
RDYI4
map
digital
IADOT
799
 41.14639
-92.64333
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
64 Waterloo (US20) Black Hawk
64
na
na		 na
na
RWLI4
map
digital
IADOT
883
 42.45556
-92.30889
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
65 West of Bedford (HW 2) Taylor
53
na
na		 na
na
RBFI4
map
digital
IADOT
1100
 40.67722
-94.71472
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
66 Williams (I35) Wright
53
na
na		 na
na
RWII4
map
digital
IADOT
1150
 42.58722
-93.53139
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
67 Williamsburg (I80) Iowa
57
na
na		 na
na
RWBI4
map
digital
IADOT
855
 41.68750
-92.00861
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.