July in Hyampom runs hotter than in 89% of U.S. towns
The coldest hours of a January night bottom out at 34° on average. Its yearly precipitation tops that of 81% of U.S. towns. Compared with 1901–2000, the average now sits 1.4° higher. Comfortable outdoor weather, highs of 73–83°, belongs to May, June and October.
A year in Hyampom at a glance
Each month’s typical high and low, and what it brings.
What stands out about Hyampom’s climate
Compared with towns across the U.S., with Hyampom’s place in California beside it.
What a year in Hyampom feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 197 frost-free days a year
In half of years the last 32° night comes by April 16 and the first by October 31. Frost and day counts come from Big Bar 4 E, CA, 16 miles away.
The 2023 USDA map puts Hyampom’s center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 21°. 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 Big Bar 4 E, CA, falls mostly in December. Precipitation (rain plus melted snow) adds up to 49 inches a year; December is the wettest month and July the driest. Rain or snow falls on about 101 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Hyampom
81% of the work is heating. Months averaging under 55° run from November through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Big Bar 4 E, CA.
Living with Hyampom’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
197 frost-free days in zone 9a. The last frost comes by Apr 16 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 31.
Months with highs of 62–84° and lows of 40° or more: May, June and October. 21 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Hyampom from natural hazards, river flooding is the largest share (48%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Hyampom and similar climates
TownRatings has no climate map of the towns around Hyampom yet.
Climates most like Hyampom’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 |
|---|---|---|---|---|
| Hyampom, CA | 34° | 92° | 49" | 2.7" |
| Lake City, SC | 35° | 92° | 48" | 1.6" |
| Texarkana, AR | 34° | 93° | 52" | 2.1" |
| Wake Village, TX | 34° | 93° | 52" | 2.1" |
| Lumberton, NC | 34° | 91° | 48" | 1.2" |
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 Hyampom averaged 1.4° warmer than the 1900s. The biggest change is in January (+2.3°).
A bigger shift than in 56% 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 Hyampom compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Hyampom’s place among California’s.
Hyampom weather by month
Highs, lows and precipitation from NOAA’s grid at Hyampom’s center; snow, wet days and snow on the ground from Big Bar 4 E, CA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 51° | 34° | 9.4" | 0.7" | 16 | 1 | 39° – 47° |
| February | 56° | 35° | 7.8" | 0.4" | 14 | 0 | 40° – 51° |
| March | 61° | 37° | 6.3" | 0.3" | 14 | 0 | 43° – 55° |
| April | 67° | 39° | 3.8" | 0.0" | 11 | 0 | 47° – 58° |
| May | 75° | 43° | 1.8" | 0.0" | 7 | 0 | 53° – 65° |
| June | 83° | 48° | 0.6" | 0.0" | 4 | 0 | 61° – 72° |
| July | 92° | 53° | 0.1" | 0.0" | 1 | 0 | 67° – 76° |
| August | 92° | 51° | 0.1" | 0.0" | 1 | 0 | 69° – 76° |
| September | 87° | 47° | 0.5" | 0.0" | 2 | 0 | 63° – 70° |
| October | 73° | 41° | 2.6" | 0.0" | 5 | 0 | 54° – 62° |
| November | 57° | 37° | 5.7" | 0.2" | 13 | 0 | 40° – 52° |
| December | 48° | 34° | 10.3" | 1.1" | 15 | 0 | 37° – 46° |
| Year | 70° | 42° | 49.1" | 2.7" | 101 | 2 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 43° to 55°. August is the most reliable, staying within 7°.
Where Hyampom’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 Hyampom’s center.
- Snow: Big Bar 4 E, CA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Big Bar 4 E, CA, 16 miles from the town’s center, 600 ft lower; no station nearby passes every check; this is the nearest one in the same valley, flagged above.
- 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 Hyampom’s climate
What is the weather like in Hyampom?
A typical July afternoon reaches 92°, a January night drops to 34°, and about 3 inches of snow falls in a normal winter. Milder January nights than 79% of U.S. towns; hotter July afternoons than 89% of U.S. towns.
How cold does it get in Hyampom in winter?
December nights average 34°. About 59 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 37°.
How much snow does Hyampom get?
About 2.7 inches in a normal winter at Big Bar 4 E, CA, most of it in December, with snow on the ground about 2 days a year.
How hot does it get in Hyampom?
July, with a typical high of 92° and a low of 53°. About 90 days a year reach 90° and 30 reach 100° (Big Bar 4 E, CA).
When is the first and last frost in Hyampom?
In half of years the last spring frost (32°) comes by April 16 and the first fall frost by October 31, about 197 frost-free days, at Big Bar 4 E, CA.
What growing zone is Hyampom in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 21°.
What is the best time of year to visit Hyampom?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Hyampom getting warmer?
Yes: 1991–2020 averaged 1.4° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 56% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Hyampom.
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.