|
Typical Boise May Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 72.3 °F | |
| Average daily low | 47.0 °F | |
| Average monthly precipitation | 1.4 inches | |
| Average monthly snow | none | |
| Daily chance of precipitation | 27.2% | |
| Daily chance of snow | 0% | |
|
Boise May Weather Records 1911–2024 |
||
|---|---|---|
| Highest temperature | 101 °F | May 28, 1919 |
| Lowest temperature | 22 °F | May 5, 1982 |
| Highest daily low | 69 °F | May 30, 2020 |
| Lowest daily high | 42 °F | May 2, 1964 |
| Hottest average high temperature | 81.7 °F | 1928 |
| Coldest average high temperature | 64.1 °F | 1953 |
| Most daily precipitation | 1.8 inches | May 29, 1990 |
| Most monthly precipitation | 4.4 inches | 1998 |
| Most daily snow | 4.0 inches | May 2, 1964 |
| Most monthly snow | 4.0 inches | 1964 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| May 1 | 67.7 | 42.9 | 88 | 27 |
| May 2 | 68.0 | 43.2 | 91 | 23 |
| May 3 | 68.3 | 43.5 | 90 | 28 |
| May 4 | 68.6 | 43.8 | 93 | 26 |
| May 5 | 68.9 | 44.0 | 94 | 22 |
| May 6 | 69.1 | 44.2 | 95 | 27 |
| May 7 | 69.2 | 44.4 | 93 | 26 |
| May 8 | 69.5 | 44.6 | 94 | 28 |
| May 9 | 69.9 | 44.9 | 87 | 24 |
| May 10 | 70.3 | 45.1 | 92 | 24 |
| May 11 | 70.6 | 45.4 | 93 | 22 |
| May 12 | 70.9 | 45.7 | 94 | 22 |
| May 13 | 71.2 | 46.0 | 95 | 26 |
| May 14 | 71.5 | 46.3 | 94 | 28 |
| May 15 | 71.9 | 46.7 | 93 | 28 |
| May 16 | 72.3 | 47.0 | 94 | 28 |
| May 17 | 72.7 | 47.3 | 94 | 30 |
| May 18 | 73.0 | 47.7 | 95 | 30 |
| May 19 | 73.4 | 48.0 | 90 | 28 |
| May 20 | 73.7 | 48.3 | 94 | 32 |
| May 21 | 74.1 | 48.6 | 91 | 27 |
| May 22 | 74.4 | 48.8 | 93 | 28 |
| May 23 | 74.6 | 49.1 | 95 | 32 |
| May 24 | 74.9 | 49.3 | 97 | 33 |
| May 25 | 75.2 | 49.6 | 99 | 27 |
| May 26 | 75.4 | 49.7 | 99 | 33 |
| May 27 | 75.5 | 49.9 | 94 | 32 |
| May 28 | 75.7 | 50.1 | 101 | 34 |
| May 29 | 75.9 | 50.2 | 95 | 32 |
| May 30 | 76.1 | 50.3 | 98 | 32 |
| May 31 | 76.3 | 50.4 | 98 | 32 |