Hot-summer humid continental climate
Climate Harlan - Iowa
Annual high59ºF
Annual low38ºF
Precipitation33.52 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 30 | 10 | 0.86 | 7 |
| Feb | 35 | 14 | 0.87 | 7 |
| Mar | 48 | 25 | 2.16 | 5 |
| Apr | 61 | 37 | 3.30 | 1 |
| May | 72 | 49 | 4.60 | 0 |
| Jun | 81 | 60 | 4.63 | 0 |
| Jul | 84 | 64 | 4.17 | 0 |
| Aug | 82 | 62 | 3.75 | 0 |
| Sep | 75 | 51 | 3.81 | 0 |
| Oct | 63 | 39 | 2.59 | 1 |
| Nov | 47 | 26 | 1.62 | 3 |
| Dec | 32 | 14 | 1.16 | 7 |
- JanHigh 30ºFLow 10ºFPrecip 0.86 inch
- FebHigh 35ºFLow 14ºFPrecip 0.87 inch
- MarHigh 48ºFLow 25ºFPrecip 2.16 inch
- AprHigh 61ºFLow 37ºFPrecip 3.30 inch
- MayHigh 72ºFLow 49ºFPrecip 4.60 inch
- JunHigh 81ºFLow 60ºFPrecip 4.63 inch
- JulHigh 84ºFLow 64ºFPrecip 4.17 inch
- AugHigh 82ºFLow 62ºFPrecip 3.75 inch
- SepHigh 75ºFLow 51ºFPrecip 3.81 inch
- OctHigh 63ºFLow 39ºFPrecip 2.59 inch
- NovHigh 47ºFLow 26ºFPrecip 1.62 inch
- DecHigh 32ºFLow 14ºFPrecip 1.16 inch
Climate summary
What is the average weather in Harlan, Iowa?
Harlan experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm, while winters are cold and bring significant snowfall. Precipitation is moderate overall, with a strong pattern of wetter summers and drier winters, though moisture is spread relatively evenly throughout the year.
Harlan weather averages
Annual high59ºF
Annual low38ºF
Precipitation33.52 inch
Snowfall31 inch
Daily normals Harlan - Iowa - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 31.3 | 12.2 | 0.03 | 0.03 | 0.20 | 0.20 |
| Jan 2 | 31.2 | 12.0 | 0.06 | 0.06 | 0.50 | 0.50 |
| Jan 3 | 31.0 | 11.8 | 0.09 | 0.09 | 0.70 | 0.70 |
| Jan 4 | 30.9 | 11.6 | 0.12 | 0.12 | 0.90 | 0.90 |
| Jan 5 | 30.8 | 11.4 | 0.15 | 0.15 | 1.20 | 1.20 |
| Jan 6 | 30.7 | 11.3 | 0.18 | 0.18 | 1.40 | 1.40 |
| Jan 7 | 30.6 | 11.1 | 0.20 | 0.20 | 1.60 | 1.60 |
| Jan 8 | 30.5 | 10.9 | 0.23 | 0.23 | 1.90 | 1.90 |
| Jan 9 | 30.4 | 10.8 | 0.26 | 0.26 | 2.10 | 2.10 |
| Jan 10 | 30.4 | 10.6 | 0.28 | 0.28 | 2.30 | 2.30 |
| Jan 11 | 30.3 | 10.5 | 0.31 | 0.31 | 2.60 | 2.60 |
| Jan 12 | 30.3 | 10.4 | 0.34 | 0.34 | 2.80 | 2.80 |
| Jan 13 | 30.3 | 10.2 | 0.37 | 0.37 | 3.00 | 3.00 |
| Jan 14 | 30.3 | 10.1 | 0.39 | 0.39 | 3.30 | 3.30 |
| Jan 15 | 30.3 | 10.0 | 0.42 | 0.42 | 3.50 | 3.50 |
| Jan 16 | 30.3 | 9.9 | 0.45 | 0.45 | 3.80 | 3.80 |
| Jan 17 | 30.3 | 9.8 | 0.47 | 0.47 | 4.00 | 4.00 |
| Jan 18 | 30.3 | 9.7 | 0.50 | 0.50 | 4.20 | 4.20 |
| Jan 19 | 30.4 | 9.7 | 0.53 | 0.53 | 4.50 | 4.50 |
| Jan 20 | 30.4 | 9.6 | 0.56 | 0.56 | 4.70 | 4.70 |
| Jan 21 | 30.5 | 9.6 | 0.59 | 0.59 | 5.00 | 5.00 |
| Jan 22 | 30.6 | 9.5 | 0.62 | 0.62 | 5.20 | 5.20 |
| Jan 23 | 30.6 | 9.5 | 0.65 | 0.65 | 5.50 | 5.50 |
| Jan 24 | 30.7 | 9.5 | 0.68 | 0.68 | 5.80 | 5.80 |
| Jan 25 | 30.8 | 9.5 | 0.71 | 0.71 | 6.10 | 6.10 |
| Jan 26 | 30.9 | 9.5 | 0.74 | 0.74 | 6.30 | 6.30 |
| Jan 27 | 31.1 | 9.6 | 0.77 | 0.77 | 6.60 | 6.60 |
| Jan 28 | 31.2 | 9.6 | 0.80 | 0.80 | 6.80 | 6.80 |
| Jan 29 | 31.3 | 9.7 | 0.84 | 0.84 | 7.10 | 7.10 |
| Jan 30 | 31.5 | 9.8 | 0.87 | 0.87 | 7.30 | 7.30 |
| Jan 31 | 31.6 | 9.9 | 0.90 | 0.90 | 7.60 | 7.60 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Harlan - January 2016
| Day | HighºF | LowºF | Precip.inch | Snowinch | Snow depthinch |
|---|---|---|---|---|---|
| Jan 1 | 30.9 | 3.0 | 0.00 | 0.00 | 5.0 |
| Jan 2 | 26.1 | 8.1 | 0.00 | 0.00 | 5.0 |
| Jan 3 | 39.0 | 16.0 | 0.00 | 0.00 | 3.0 |
| Jan 4 | 21.9 | 15.1 | 0.00 | 0.00 | 3.0 |
| Jan 5 | 30.9 | 14.0 | 0.00 | 0.00 | 2.0 |
| Jan 6 | 30.0 | 27.0 | 0.00 | 0.00 | 2.0 |
| Jan 7 | 34.0 | 30.0 | T | T | 2.0 |
| Jan 8 | 35.1 | 32.0 | 0.41 | 0.12 | 2.0 |
| Jan 9 | 35.1 | 8.1 | T | T | 2.0 |
| Jan 10 | 10.9 | -9.0 | 0.00 | 0.00 | 2.0 |
| Jan 11 | 10.0 | -9.9 | 0.00 | 0.00 | 2.0 |
| Jan 12 | 33.1 | 1.9 | 0.00 | 0.00 | 2.0 |
| Jan 13 | 19.0 | -0.9 | T | T | 2.0 |
| Jan 14 | 37.9 | 15.1 | 0.00 | 0.00 | 1.0 |
| Jan 15 | 41.0 | 23.0 | 0.00 | 0.00 | 1.0 |
| Jan 16 | 25.0 | 10.0 | 0.00 | 0.00 | 1.0 |
| Jan 17 | 18.0 | -9.9 | T | T | 1.0 |
| Jan 18 | 3.9 | -6.0 | T | T | 1.0 |
| Jan 19 | 12.0 | -6.0 | T | T | 1.0 |
| Jan 20 | 17.1 | 10.9 | 0.30 | 2.99 | 4.0 |
| Jan 21 | 24.1 | 15.1 | 0.00 | 0.00 | 4.0 |
| Jan 22 | 28.0 | 12.0 | T | T | 4.0 |
| Jan 23 | – | – | – | – | – |
| Jan 24 | – | – | – | – | – |
| Jan 25 | 34.0 | 16.0 | T | T | 4.0 |
| Jan 26 | 34.0 | 16.0 | 0.03 | 0.51 | 4.0 |
| Jan 27 | 30.9 | 10.9 | 0.00 | 0.00 | 4.0 |
| Jan 28 | – | – | – | – | – |
| Jan 29 | 42.1 | 14.0 | 0.00 | 0.00 | 4.0 |
| Jan 30 | – | – | – | – | – |
| Jan 31 | 43.0 | 25.0 | 0.00 | 0.00 | 3.0 |
The data for January 2016 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature43.0ºF · Jan 31
- Lowest max temperature3.9ºF · Jan 18
- Highest min temperature32.0ºF · Jan 8
- Lowest min temperature-9.9ºF · Jan 11
Geo Harlan - Iowa
Location
- Country
- United States
- State
- Iowa
- County
- Shelby
- City
- Harlan
- Zip Code
- 51537
- Elevation
- 1204 ft
- Longitude
- -95.34
- Latitude
- 41.58
- ICAO
- –
- IATA
- –