Hardly any U.S. towns collect less precipitation than Mettler: 4 inches a year
January mornings start at about 40°. The year swings widely: the coldest month’s nights and the warmest month’s afternoons are 58° apart. Summer afternoons here are warmer than in 98% of U.S. towns. The outdoor season runs from February to April and October to November, with highs of 66–82°.
A year in Mettler at a glance
Each month’s typical high and low, and what it brings.
What stands out about Mettler’s climate
Compared with towns across the U.S., with Mettler’s place in California beside it.
What a year in Mettler feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 4 inches of rain a year
March is the wettest month and July the driest.
Rain + melted snow by month
Inches of water
Living with Mettler’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 9b.
Months with highs of 62–84° and lows of 40° or more: February, March, April, October and November.
Parks & trails →Of the yearly building losses FEMA expects in Mettler from natural hazards, earthquakes are the largest share (60%); heat waves, cold waves, winter storms and ice storms together are 11%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Mettler and similar climates
TownRatings has no climate map of the towns around Mettler yet.
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Mettler averaged 2.0° warmer than the 1900s. The biggest change is in September (+2.7°).
A bigger shift than in 91% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Mettler compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Mettler’s place among California’s.
Mettler weather by month
Highs, lows and precipitation from NOAA’s grid at Mettler’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 61° | 40° | 0.8" | 46° – 56° |
| February | 66° | 43° | 0.8" | 50° – 61° |
| March | 72° | 47° | 1.1" | 53° – 65° |
| April | 77° | 50° | 0.4" | 59° – 68° |
| May | 85° | 56° | 0.1" | 62° – 77° |
| June | 92° | 63° | 0.0" | 71° – 82° |
| July | 97° | 68° | 0.0" | 78° – 86° |
| August | 97° | 67° | 0.0" | 78° – 86° |
| September | 92° | 63° | 0.1" | 73° – 80° |
| October | 82° | 54° | 0.2" | 65° – 73° |
| November | 70° | 45° | 0.3" | 50° – 61° |
| December | 62° | 39° | 0.6" | 47° – 56° |
| Year | 79° | 53° | 4.4" |
How much a month can swing
A normal is an average. May swings the most: from 1991 to 2020 its average ranged from 62° to 77°. August is the most reliable, staying within 8°.
Where Mettler’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Mettler’s center.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Mettler’s climate
What is the weather like in Mettler?
A typical July afternoon reaches 97°, a January night drops to 40°. Milder January nights than 89% of U.S. towns; hotter July afternoons than 98% of U.S. towns.
How cold does it get in Mettler in winter?
December nights average 39°. In the coldest December of the last 30 years the month averaged 47°.
How hot does it get in Mettler?
July, with a typical high of 97°. 90° days are rare.
What growing zone is Mettler in?
Zone 9b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 26°.
What is the best time of year to visit Mettler?
By one simple rule (highs of 62–84° and lows of 40° or more), February, March, April, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Mettler getting warmer?
Yes: 1991–2020 averaged 2.0° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 91% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Mettler.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.