Climate Jefferson - Iowa
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 29 | 34 | 47 | 62 | 72 | 81 |
| Average low in ºF Av. low Lo | 10 | 15 | 25 | 36 | 49 | 59 |
| Av. precipitation in inch Av. precip. Pre. | 0.93 | 1.05 | 2.05 | 3.37 | 4.54 | 4.99 |
| Av. snowfall in inch Snowfall Sn | 7 | 7 | 5 | 1 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 85 | 83 | 76 | 63 | 46 | 31 |
| Average low in ºF Av. low Lo | 63 | 61 | 51 | 39 | 27 | 14 |
| Av. precipitation in inch Av. precip. Pre. | 4.61 | 3.95 | 2.98 | 2.44 | 1.88 | 1.31 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 2 | 8 |
What is the average weather in Jefferson, Iowa?
Jefferson experiences a humid continental climate, marked by very strong seasonal contrasts. Summers are warm, while winters are cold and snowy, bringing 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.
Jefferson Climate Graph - Iowa Climate Chart
Daily normals Jefferson - Iowa - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 28.4 | 11.4 | 0.03 | 0.03 | 0.20 | 0.20 |
| 2 Jan | 28.2 | 11.2 | 0.06 | 0.06 | 0.50 | 0.50 |
| 3 Jan | 28.1 | 10.9 | 0.08 | 0.08 | 0.70 | 0.70 |
| 4 Jan | 27.9 | 10.7 | 0.11 | 0.11 | 0.90 | 0.90 |
| 5 Jan | 27.8 | 10.5 | 0.14 | 0.14 | 1.20 | 1.20 |
| 6 Jan | 27.7 | 10.2 | 0.17 | 0.17 | 1.40 | 1.40 |
| 7 Jan | 27.6 | 10.0 | 0.20 | 0.20 | 1.60 | 1.60 |
| 8 Jan | 27.5 | 9.8 | 0.23 | 0.23 | 1.90 | 1.90 |
| 9 Jan | 27.4 | 9.6 | 0.25 | 0.25 | 2.10 | 2.10 |
| 10 Jan | 27.3 | 9.4 | 0.28 | 0.28 | 2.40 | 2.40 |
| 11 Jan | 27.3 | 9.3 | 0.31 | 0.31 | 2.60 | 2.60 |
| 12 Jan | 27.2 | 9.1 | 0.34 | 0.34 | 2.90 | 2.90 |
| 13 Jan | 27.2 | 8.9 | 0.37 | 0.37 | 3.10 | 3.10 |
| 14 Jan | 27.2 | 8.8 | 0.40 | 0.40 | 3.40 | 3.40 |
| 15 Jan | 27.2 | 8.7 | 0.43 | 0.43 | 3.70 | 3.70 |
| 16 Jan | 27.2 | 8.5 | 0.46 | 0.46 | 3.90 | 3.90 |
| 17 Jan | 27.2 | 8.4 | 0.49 | 0.49 | 4.20 | 4.20 |
| 18 Jan | 27.2 | 8.3 | 0.52 | 0.52 | 4.40 | 4.40 |
| 19 Jan | 27.2 | 8.3 | 0.56 | 0.56 | 4.70 | 4.70 |
| 20 Jan | 27.3 | 8.2 | 0.59 | 0.59 | 5.00 | 5.00 |
| 21 Jan | 27.3 | 8.2 | 0.62 | 0.62 | 5.30 | 5.30 |
| 22 Jan | 27.4 | 8.1 | 0.65 | 0.65 | 5.60 | 5.60 |
| 23 Jan | 27.5 | 8.1 | 0.68 | 0.68 | 5.90 | 5.90 |
| 24 Jan | 27.5 | 8.2 | 0.72 | 0.72 | 6.20 | 6.20 |
| 25 Jan | 27.6 | 8.2 | 0.75 | 0.75 | 6.50 | 6.50 |
| 26 Jan | 27.7 | 8.2 | 0.79 | 0.79 | 6.80 | 6.80 |
| 27 Jan | 27.9 | 8.3 | 0.82 | 0.82 | 7.00 | 7.00 |
| 28 Jan | 28.0 | 8.4 | 0.86 | 0.86 | 7.30 | 7.30 |
| 29 Jan | 28.1 | 8.5 | 0.89 | 0.89 | 7.60 | 7.60 |
| 30 Jan | 28.3 | 8.7 | 0.92 | 0.92 | 7.90 | 7.90 |
| 31 Jan | 28.5 | 8.8 | 0.96 | 0.96 | 8.20 | 8.20 |
Weather history Jefferson - July 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Jul | 90.0 | 75.9 | - | 0.00 | 0.0 |
| 02 Jul | 86.0 | 75.0 | - | 0.00 | 0.0 |
| 03 Jul | 88.0 | - | - | 0.00 | 0.0 |
| 04 Jul | - | 64.9 | 0.31 | 0.00 | 0.0 |
| 05 Jul | 84.0 | 66.9 | 0.07 | 0.00 | 0.0 |
| 06 Jul | 84.0 | 66.0 | 0.00 | 0.00 | 0.0 |
| 07 Jul | 84.9 | 66.9 | 0.00 | 0.00 | 0.0 |
| 08 Jul | 87.1 | 68.0 | 0.00 | 0.00 | 0.0 |
| 09 Jul | 88.0 | 66.0 | 0.36 | 0.00 | 0.0 |
| 10 Jul | 82.0 | 66.0 | 0.00 | 0.00 | 0.0 |
| 11 Jul | - | - | 0.00 | 0.00 | 0.0 |
| 12 Jul | - | - | 0.00 | 0.00 | 0.0 |
| 13 Jul | - | - | 0.00 | 0.00 | 0.0 |
| 14 Jul | 86.0 | 62.1 | 0.00 | 0.00 | 0.0 |
| 15 Jul | 87.1 | 66.0 | 0.00 | 0.00 | 0.0 |
| 16 Jul | 87.1 | 68.0 | 0.00 | 0.00 | 0.0 |
| 17 Jul | 89.1 | 68.0 | 0.00 | 0.00 | 0.0 |
| 18 Jul | 91.0 | 70.0 | 0.00 | 0.00 | 0.0 |
| 19 Jul | - | - | 0.00 | 0.00 | 0.0 |
| 20 Jul | 86.0 | 61.0 | 0.00 | 0.00 | 0.0 |
| 21 Jul | 96.1 | 68.0 | 0.08 | 0.00 | 0.0 |
| 22 Jul | 78.1 | 57.0 | 0.00 | 0.00 | 0.0 |
| 23 Jul | 73.9 | 57.0 | 0.00 | 0.00 | 0.0 |
| 24 Jul | - | - | - | 0.00 | 0.0 |
| 25 Jul | - | - | - | 0.00 | 0.0 |
| 26 Jul | - | - | 0.00 | 0.00 | 0.0 |
| 27 Jul | 96.1 | - | 0.00 | 0.00 | 0.0 |
| 28 Jul | 93.9 | 72.0 | 0.00 | 0.00 | 0.0 |
| 29 Jul | - | - | 0.00 | 0.00 | 0.0 |
| 30 Jul | 86.0 | 68.0 | 0.00 | 0.00 | 0.0 |
| 31 Jul | - | - | - | 0.00 | 0.0 |
Past weather Jefferson
| Jul 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 86.9 ºF | 29 ºF | |
| Average low temperature Av. low temp. | 66.6 ºF | 10 ºF | |
| Total precipitation Total precip. | - inch | 0.93 inch | |
| Total snowfall Total snowfall | 0.00 inch | 7 inch | |
| Highest max temperature Highest max temp. | 96.1 ºF | - | |
| Lowest max temperature Lowest max temp. | 73.9 ºF | - | |
| Highest min temperature Highest min temp. | 75.9 ºF | - | |
| Lowest min temperature Lowest min temp. | 57.0 ºF | - | |
Past weather July 2026 incomplete - Missing data
Geo Jefferson - Iowa
| Country | United States | |
|---|---|---|
| State | Iowa | |
| County | Greene | |
| City | Jefferson | |
| Zip Code | 50129 | |
| Longitude | -94.34 dec. degr. | |
| Latitude | 42.01 dec. degr. | |
| Altitude - Elevation | 1043ft | |
| ICAO | - | |
| IATA | - |
Date and Time Jefferson - Iowa
| Local Time | 04:50 AM | |
|---|---|---|
| Sunrise | 06:55 AM | |
| Sunset | 07:30 PM | |
| Day/Night | Night | |
| Timezone | Central Daylight Time | |
| Timezone DB | America - Chicago |
Map of Jefferson - Iowa
USGS National Map — Open interactive map
Jefferson weather averages
| Annual high temperature | 59ºF |
| Annual low temperature | 37ºF |
| Average annual precip. | 34.1 inch |
| Av. annual snowfall | 30 inch |
Station Data
Monthly averages Jefferson
Longitude: -94.3424, Latitude: 42.0106
Average weather Jefferson, IA - 50129
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...