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Holladay, Utah climate
Csa Hot-summer Mediterranean
Holladay has a strongly seasonal cool-temperate climate (Hot-summer Mediterranean, Köppen Csa). The hottest month is July with an average daily high near 91°F, while the coldest is January averaging around 23°F at night. Precipitation totals about 24 inches a year and is strongly seasonal — April alone averages 3.3 inches while July barely receives 0.60 inches. Snowfall is heavy (82 inches of snow per year on average).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsHolladay climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 38 | 44 | 54 | 61 | 71 | 82 | 91 | 89 | 79 | 64 | 49 | 38 |
| Avg temp (°F) | 30 | 36 | 44 | 50 | 59 | 70 | 79 | 77 | 68 | 54 | 40 | 31 |
| Avg low (°F) | 23 | 27 | 34 | 40 | 48 | 57 | 68 | 66 | 56 | 43 | 32 | 23 |
| Precipitation (in) | 2.2 | 2.3 | 2.7 | 3.3 | 2.8 | 1.4 | 0.6 | 0.9 | 1.6 | 2.1 | 2.1 | 2.4 |
| Snowfall (in) | 17.0 | 18.4 | 7.6 | 5.6 | 0.3 | — | — | — | — | 1.5 | 8.2 | 23.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 38 | 44 | 54 | 61 | 71 | 82 |
| Avg temp (°F) | 30 | 36 | 44 | 50 | 59 | 70 |
| Avg low (°F) | 23 | 27 | 34 | 40 | 48 | 57 |
| Precipitation (in) | 2.2 | 2.3 | 2.7 | 3.3 | 2.8 | 1.4 |
| Snowfall (in) | 17.0 | 18.4 | 7.6 | 5.6 | 0.3 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 91 | 89 | 79 | 64 | 49 | 38 |
| Avg temp (°F) | 79 | 77 | 68 | 54 | 40 | 31 |
| Avg low (°F) | 68 | 66 | 56 | 43 | 32 | 23 |
| Precipitation (in) | 0.6 | 0.9 | 1.6 | 2.1 | 2.1 | 2.4 |
| Snowfall (in) | — | — | — | 1.5 | 8.2 | 23.3 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 8 | 9 | 10 | 9 | 5 | 3 | 5 | 6 | 8 | 8 | 9 |
| Days with high ≥ 90°F (days) | — | — | — | — | 0.3 | 7 | 20 | 17 | 2 | — | — | — |
| Days with low ≤ 32°F (days) | 26 | 20 | 12 | 6 | 0.7 | — | — | — | — | 3 | 16 | 26 |
| Days with snowfall ≥ 1 in (days) | 4 | 3 | 2 | 1 | 0.1 | — | — | — | — | 0.5 | 2 | 5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 8 | 9 | 10 | 9 | 5 |
| Days with high ≥ 90°F (days) | — | — | — | — | 0.3 | 7 |
| Days with low ≤ 32°F (days) | 26 | 20 | 12 | 6 | 0.7 | — |
| Days with snowfall ≥ 1 in (days) | 4 | 3 | 2 | 1 | 0.1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 3 | 5 | 6 | 8 | 8 | 9 |
| Days with high ≥ 90°F (days) | 20 | 17 | 2 | — | — | — |
| Days with low ≤ 32°F (days) | — | — | — | 3 | 16 | 26 |
| Days with snowfall ≥ 1 in (days) | — | — | — | 0.5 | 2 | 5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 59 | 62 | 63 | 63 | 59 | 43 | 42 | 43 | 39 | 46 | 55 | 60 |
| Clear days (≤ 30% cloud) | 7 | 5 | 5 | 5 | 7 | 13 | 13 | 12 | 14 | 12 | 8 | 6 |
| Partly cloudy days (30–70%) | 12 | 11 | 12 | 11 | 11 | 10 | 11 | 13 | 9 | 9 | 9 | 12 |
| Cloudy days (≥ 70%) | 13 | 13 | 14 | 14 | 13 | 7 | 7 | 7 | 7 | 10 | 13 | 13 |
| Relative humidity (%) | 80 | 74 | 64 | 59 | 52 | 43 | 37 | 37 | 41 | 50 | 64 | 77 |
| Wind speed (mph) | 3.6 | 4.2 | 4.7 | 5.0 | 4.5 | 4.7 | 4.3 | 4.3 | 4.3 | 4.1 | 3.8 | 3.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 59 | 62 | 63 | 63 | 59 | 43 |
| Clear days (≤ 30% cloud) | 7 | 5 | 5 | 5 | 7 | 13 |
| Partly cloudy days (30–70%) | 12 | 11 | 12 | 11 | 11 | 10 |
| Cloudy days (≥ 70%) | 13 | 13 | 14 | 14 | 13 | 7 |
| Relative humidity (%) | 80 | 74 | 64 | 59 | 52 | 43 |
| Wind speed (mph) | 3.6 | 4.2 | 4.7 | 5.0 | 4.5 | 4.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 42 | 43 | 39 | 46 | 55 | 60 |
| Clear days (≤ 30% cloud) | 13 | 12 | 14 | 12 | 8 | 6 |
| Partly cloudy days (30–70%) | 11 | 13 | 9 | 9 | 9 | 12 |
| Cloudy days (≥ 70%) | 7 | 7 | 7 | 10 | 13 | 13 |
| Relative humidity (%) | 37 | 37 | 41 | 50 | 64 | 77 |
| Wind speed (mph) | 4.3 | 4.3 | 4.3 | 4.1 | 3.8 | 3.6 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Cottonwood Weir (NOAA GHCN station USC00421759), about 7 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.