Thor, IA

Climate overview — based on NOAA 1991-2020 normals from DAKOTA CITY, IA US.

Dfa Hot-summer humid continental climate 6a USDA hardiness Zone 6a

Year-round temperatures (°F)

20° 40° 60° 80° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Thor has an annual average temperature of 46.8°F with about 35.8 inches of precipitation per year. The warmest month is July (average high 83.3°F), and the coldest is January (average low 8.0°F). June is typically the wettest month (5.41 in) and January the driest (0.89 in).

Pleasant months
2 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
55.9°F
warmest to coldest month
Heating need
7,068
Cooling need
528

Best time to visit Thor

Full guide →

Climate change signal

All-time records →

200 of 366 (54.6%) of Thor's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

2000s
3
2010s
276
2020s
87

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 25.8°F 8.0°F 16.9°F 0.89 in
February 29.8°F 12.1°F 21.0°F 1.37 in
March 43.1°F 24.1°F 33.6°F 2.02 in
April 58.5°F 35.4°F 47.0°F 3.71 in
May 70.0°F 48.0°F 59.0°F 5.12 in
June 79.8°F 58.8°F 69.3°F 5.41 in
July 83.3°F 62.4°F 72.8°F 4.01 in
August 81.4°F 59.5°F 70.5°F 4.49 in
September 75.6°F 51.2°F 63.4°F 3.24 in
October 62.1°F 38.2°F 50.1°F 2.59 in
November 45.2°F 25.7°F 35.5°F 1.61 in
December 31.0°F 14.7°F 22.9°F 1.37 in

Climate twins of Thor

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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