The bar chart below shows the average monthly peak daytime temperatures at Ukiah
		
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 11.8 | 13.5 | 14.5 | 16.8 | 20.6 | 24.5 | 27.8 | 27.6 | 26 | 21.7 | 15 | 11.6 | 
| °F | 53.2 | 56.3 | 58 | 62.3 | 69.2 | 76 | 82.1 | 81.6 | 78.8 | 71 | 59 | 52.8 | 
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
The graph below shows the average rainfall and number of rainy days per month.
		
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 233 | 175 | 148 | 71 | 25 | 10 | 3 | 6 | 16 | 63 | 158 | 203 | 
| inches | 9.2 | 6.9 | 5.8 | 2.8 | 1 | 0.4 | 0.1 | 0.2 | 0.6 | 2.5 | 6.2 | 8 | 
| Rainy days | 12 | 11 | 13 | 9 | 5 | 3 | 2 | 3 | 3 | 6 | 11 | 12 | 
Average annual rainfall in Ukiah: 1025.733mm (403.8 inches)
The bar chart below shows the average daily sunshine hours in Ukiah
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 6 | 7.3 | 8.7 | 10.6 | 11.4 | 11.6 | 11.6 | 10.5 | 9.9 | 8.3 | 6 | 5.5 | 
The graph below shows the daily range of temperatures for each month.
		
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min °C | 1.2 | 2.5 | 2.9 | 3.7 | 6.2 | 8.6 | 10.2 | 10 | 8.2 | 5.6 | 2.9 | 1.4 | 
| Max °C | 12.1 | 13.8 | 14.8 | 17.2 | 21 | 24.9 | 28.3 | 28 | 26.5 | 22.1 | 15.3 | 11.8 | 
| Min °F | 34.1 | 36.4 | 37.1 | 38.6 | 43.2 | 47.4 | 50.3 | 50 | 46.7 | 42 | 37.2 | 34.5 | 
| Max °F | 43.9 | 46.6 | 47.8 | 50.7 | 56.5 | 62.1 | 66.6 | 66.2 | 63.1 | 56.8 | 48.4 | 43.9 | 
The graph below shows the average sea temperature.
		
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 11.8 | 11.6 | 11.6 | 11.4 | 11.4 | 11.8 | 12.5 | 13.5 | 13.8 | 13.3 | 12.9 | 12.2 | 
| °F | 53.2 | 52.9 | 52.9 | 52.5 | 52.5 | 53.3 | 54.5 | 56.2 | 56.8 | 56 | 55.2 | 54 | 
The graph below shows the average wind speed.
		
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 11 | 13 | 15 | 17 | 17 | 18 | 17 | 16 | 14 | 13 | 12 | 12 | 
| mph | 7 | 8 | 9 | 10 | 11 | 11 | 11 | 10 | 9 | 8 | 7 | 7 | 
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
The graph below shows the average relative humidity.
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| 81% | 77% | 73% | 70% | 69% | 67% | 66% | 68% | 68% | 71% | 79% | 82% | 
| Hottest month: | July | 27.8°C 82°F | 
|---|---|---|
| Driest month: | July | 3mm 0.1ins | 
| Sunniest month: | April | 10.6hrs | 
| Coldest month: | January | 11.8°C 53.2°F | 
| Wettest month: | January | 233mm 9.2ins | 
| Warmest sea: | September | 13.8°C 56.8°F |