| Average climate data for Walnut Canyon National Monument, United States | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 7 | 9 | 12 | 16 | 22 | 27 | 29 | 27 | 25 | 19 | 13 | 7 | 29 |
| Average minimum temperature (°C) | -8 | -5 | -3 | 0 | 5 | 9 | 14 | 12 | 8 | 1 | -3 | -8 | -8 |
| Average precipitation (mm) | 45 | 42 | 40 | 26 | 13 | 10 | 62 | 84 | 52 | 30 | 35 | 39 | 477 |
| Average rainfall days (days) | 6 | 6 | 6 | 5 | 4 | 3 | 11 | 13 | 7 | 5 | 4 | 6 | 76 |
| Average snowfall (mm) | 369 | 341 | 255 | 152 | 8 | 0 | 0 | 0 | 0 | 23 | 109 | 244 | 1,500 |
| Average snowfall days (days) | 3 | 4 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 18 |
| Average daily daylight hours (h) | 10 | 10 | 12 | 13 | 14 | 14 | 14 | 13 | 12 | 11 | 10 | 9 | 12 |
The warmest month, with the highest average maximum temperature, is July (29.4 °C). The month with the lowest average maximum temperature is January (7.2 °C). Overall, the average maximum temperature over the whole year is 18 °C.
The month with the highest average minimum temperature is July (13.6 °C). The coldest month, with the lowest average minimum temperature, is January (-8.1 °C). Overall, the average minimum temperature over the whole year is 1.9 °C.
The wettest month, with the highest amount of precipitation, is August (84 mm). The driest month, with the least amount of precipitation, is June (9.5 mm). Over the whole year there are 477.3 mm of rainfall on average.
The month with the most days of rain is August (12.8 days). The month with the fewest days of rain is June (2.7 days). Over the whole year there are 76 days of rain on average.
The month with the most snowfall is January (369.3 mm). The months with the least snowfall are June, July, August and September (0 mm). Over the whole year there are 1,500.2 mm of snowfall on average.
The month with the most days of snowfall is February (4.2 days). The months with the fewest days of snowfall are June and July (0 days). Over the whole year there are 18.5 days of snowfall on average.
The month with the longest days, so the most daylight, is June (Average daylight: 14 h). The month with the shortest days, so the least daylight, is December (Average daylight: 9.1 h). Over the whole year there are 11.9 h of daylight per day on average.
