Weather & Climate at Camp Dodge Army Base in Johnston, IA
Summary of the weather and climate in Johnston, IA:
- The average high in Johnston, IA is 59.7°F and average low is 39.9°F
- The hottest month is July with an high of 85°F
- The coldest month is January with an low of 12.2°F
- Annual rainfall is 35.61 inches. The rainiest month is June with an average of 5.3 inches.
- Annual snowfall is 39.3 inches. The snowiest month is January with an average of 10.5 inches.
SOURCE: NOAA.GOV
Climate Table — Camp Dodge Army Base
Monthly Averages:
| High (°F) | Low (°F) | Rainfall (inches) | Snowfall (inches) | |
|---|---|---|---|---|
| January | 30.2 | 12.2 | 0.98 | 10.5 |
| February | 35.5 | 16.9 | 1.19 | 9.6 |
| March | 48.8 | 27.7 | 2.21 | 6.1 |
| April | 62 | 39.7 | 3.71 | 1.9 |
| May | 72 | 51.1 | 4.46 | 0 |
| June | 80.5 | 60.6 | 5.3 | 0 |
| July | 85 | 64.8 | 4.78 | 0 |
| August | 83.2 | 63.4 | 4.04 | 0 |
| September | 75.9 | 54.3 | 3.15 | 0 |
| October | 62.7 | 41.7 | 2.54 | 0.6 |
| November | 47.1 | 29.2 | 1.94 | 2 |
| December | 33 | 16.6 | 1.31 | 8.6 |
Climate Charts — Camp Dodge Army Base
Weather through the year:
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