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Weather & Climate
Saint Johns, Arizona, United States
Overview
Climate data and monthly weather averages for Saint Johns.
Key Metrics
Annual Avg
12.1°C
Summer Avg
22.6°C
Winter Avg
1.9°C
Record High
38.1°C
Record Low
-19°C
Annual Precipitation
310.4 mm
Avg Humidity
45%
Summer Humidity
40%
Winter Humidity
55%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 19° | 1.4° | -19° | 21.4 | 56% | 101 | 59.1 |
| Feb | 21.6° | 2.9° | -18.6° | 18.8 | 53% | 118 | 63.3 |
| Mar | 26.2° | 6.9° | -10.3° | 15.2 | 45% | 178 | 61.6 |
| Apr | 29.8° | 10.7° | -6.4° | 11.4 | 37% | 213 | 61.7 |
| May | 35.4° | 15.9° | -3.9° | 11.2 | 32% | 245 | 55.7 |
| Jun | 37.5° | 22.3° | 2.5° | 7.8 | 25% | 248 | 61.9 |
| Jul | 38.1° | 23.5° | 10.2° | 64.8 | 45% | 212 | 38.6 |
| Aug | 36.5° | 22.1° | 9.6° | 61.4 | 49% | 198 | 39.2 |
| Sep | 34.6° | 18.9° | 0.8° | 35.1 | 45% | 176 | 51.6 |
| Oct | 30.4° | 12.4° | -9.2° | 20.5 | 45% | 152 | 59.3 |
| Nov | 25° | 6.3° | -12.5° | 18.9 | 49% | 111 | 55 |
| Dec | 20.3° | 1.4° | -17.9° | 23.9 | 56% | 90 | 57.3 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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