Afternoon heat in Whitmore beats that of 94% of U.S. towns
January mornings start at about 36°. Only 60° separates winter nights from summer afternoons. Winters are mild: January nights here are milder than in 82% of U.S. towns. For walks and days out, April, May and October bring highs of 67–77°.
A year in Whitmore at a glance
Each month’s typical high and low, and what it brings.
What stands out about Whitmore’s climate
Compared with towns across the U.S., with Whitmore’s place in California beside it.
What a year in Whitmore feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 261 frost-free days a year
In half of years the last 32° night comes by March 3 and the first by November 21. Frost dates and degree days from Redding Muni Airport, 20 miles away.
The 2023 USDA map puts Whitmore’s center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 24°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 3 inches of snow a winter
Snow, measured at Redding Muni Airport, falls mostly in January. Precipitation (rain plus melted snow) adds up to 39 inches a year; December is the wettest month and July the driest. Rain or snow falls on about 81 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Whitmore
56% of the work is heating. Months averaging under 55° run from November through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Redding Muni Airport.
Living with Whitmore’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
261 frost-free days in zone 9a. The last frost comes by Mar 3 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 21.
Months with highs of 62–84° and lows of 40° or more: April, May and October. 1.6 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Whitmore from natural hazards, wildfire is the largest share (52%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Whitmore and similar climates
TownRatings has no climate map of the towns around Whitmore yet.
Climates most like Whitmore’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Whitmore, CA | 36° | 95° | 39" | 2.6" |
| Aubrey, TX | 34° | 95° | 40" | 2.6" |
| Ardmore, OK | 31° | 94° | 39" | 2.7" |
| Cayce, SC | 35° | 93° | 46" | 1.2" |
| Evans, GA | 35° | 92° | 45" | 0.8" |
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 Whitmore averaged 1.0° warmer than the 1900s. The biggest change is in January (+2.1°).
A smaller shift than in 78% 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 Whitmore compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Whitmore’s place among California’s.
Whitmore weather by month
Highs, lows and precipitation from NOAA’s grid at Whitmore’s center; snow, wet days and snow on the ground from Redding Muni Airport. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 54° | 36° | 6.5" | 1.1" | 12 | 0 | 40° – 52° |
| February | 56° | 37° | 6.0" | 0.8" | 11 | 0 | 39° – 54° |
| March | 61° | 40° | 5.2" | 0.0" | 12 | 0 | 41° – 58° |
| April | 67° | 44° | 3.9" | 0.0" | 8 | 0 | 48° – 60° |
| May | 77° | 50° | 2.5" | 0.0" | 6 | 0 | 53° – 72° |
| June | 86° | 57° | 1.1" | 0.0" | 3 | 0 | 66° – 78° |
| July | 95° | 63° | 0.1" | 0.0" | 1 | 0 | 74° – 82° |
| August | 94° | 61° | 0.1" | 0.0" | 1 | 0 | 73° – 82° |
| September | 88° | 56° | 0.5" | 0.0" | 1 | 0 | 68° – 77° |
| October | 76° | 48° | 2.2" | 0.0" | 5 | 0 | 57° – 69° |
| November | 60° | 40° | 3.9" | 0.0" | 9 | 0 | 41° – 56° |
| December | 52° | 35° | 6.8" | 0.7" | 13 | 0 | 40° – 48° |
| Year | 72° | 47° | 38.6" | 2.6" | 81 | 1 |
How much a month can swing
A normal is an average. May swings the most: from 1991 to 2020 its average ranged from 53° to 72°. July is the most reliable, staying within 8°.
Where Whitmore’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 Whitmore’s center.
- Snow: Redding Muni Airport.
- Frost dates, heating and cooling: Redding Muni Airport, 20 miles away.
- 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 Whitmore’s climate
What is the weather like in Whitmore?
A typical July afternoon reaches 95°, a January night drops to 36°, and about 3 inches of snow falls in a normal winter. Milder January nights than 82% of U.S. towns; hotter July afternoons than 94% of U.S. towns.
How cold does it get in Whitmore in winter?
December nights average 35°. About 27 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 40°.
How much snow does Whitmore get?
About 2.6 inches in a normal winter at Redding Muni Airport, most of it in January, with snow on the ground about 1 days a year.
How hot does it get in Whitmore?
July, with a typical high of 95° and a low of 63°. About 106 days a year reach 90° (Redding Muni Airport).
When is the first and last frost in Whitmore?
In half of years the last spring frost (32°) comes by March 3 and the first fall frost by November 21, about 261 frost-free days, at Redding Muni Airport.
What growing zone is Whitmore in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 24°.
What is the best time of year to visit Whitmore?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Whitmore getting warmer?
Yes: 1991–2020 averaged 1.0° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 78% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Whitmore.
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.