Photo: Stan Shebs · CC BY-SA 3.0Cal-Nev-Ari sits near the bottom of U.S. towns for precipitation, with 6 inches a year
In July the day’s top temperature is typically 102°. The gap between a January night and a July afternoon is 64°. Summer afternoons here are warmer than in almost every U.S. town. Radiators earn their keep from December to January, the months that average under 50°.
A year in Cal-Nev-Ari at a glance
Each month’s typical high and low, and what it brings.
What stands out about Cal-Nev-Ari’s climate
Compared with towns across the U.S., with Cal-Nev-Ari’s place in Nevada beside it.
What a year in Cal-Nev-Ari feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 266 frost-free days a year
In half of years the last 32° night comes by March 7 and the first by November 29. Frost dates and degree days from Searchlight, NV, 12 miles away.
The 2023 USDA map puts Cal-Nev-Ari’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 6 inches of rain a year
February is the wettest month and June the driest. Rain falls on about 25 days a year. Snow is rare: about 0.5" in a normal year at Searchlight, NV, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Cal-Nev-Ari
53% of the work is heating. Months averaging under 55° run from December through February.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Searchlight, NV.
Living with Cal-Nev-Ari’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
266 frost-free days in zone 9a. The last frost comes by Mar 7 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 29.
Months with highs of 62–84° and lows of 40° or more: February, March, April, October and November. 1.9 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Cal-Nev-Ari from natural hazards, river flooding is the largest share (40%); heat waves, cold waves, winter storms and ice storms together are 7%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Cal-Nev-Ari and similar climates
TownRatings has no climate map of the towns around Cal-Nev-Ari yet.
Climates most like Cal-Nev-Ari’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 |
|---|---|---|---|---|
| Cal-Nev-Ari, NV | 39° | 102° | 6" | 0.5" |
| Flowing Wells, AZ | 38° | 102° | 11" | 0.0" |
| Oildale, CA | 40° | 100° | 8" | 0.1" |
| Hurricane, UT | 31° | 101° | 11" | 1.4" |
| Monahans, TX | 30° | 98° | 12" | 0.7" |
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 Cal-Nev-Ari averaged 1.6° warmer than the 1900s. The biggest change is in January (+2.8°).
A bigger shift than in 68% 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 Cal-Nev-Ari compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Cal-Nev-Ari’s place among Nevada’s.
Cal-Nev-Ari weather by month
Highs, lows and precipitation from NOAA’s grid at Cal-Nev-Ari’s center; snow, wet days and snow on the ground from Searchlight, NV. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 59° | 39° | 0.9" | 0.0" | 3 | 0 | 45° – 56° |
| February | 63° | 42° | 1.1" | 0.5" | 4 | 0 | 45° – 59° |
| March | 70° | 47° | 0.7" | 0.0" | 3 | 0 | 51° – 66° |
| April | 78° | 52° | 0.2" | 0.0" | 1 | 0 | 59° – 70° |
| May | 87° | 60° | 0.1" | 0.0" | 1 | 0 | 67° – 80° |
| June | 98° | 70° | 0.0" | 0.0" | 1 | 0 | 78° – 88° |
| July | 102° | 76° | 0.6" | 0.0" | 3 | 0 | 85° – 92° |
| August | 101° | 75° | 0.6" | 0.0" | 3 | 0 | 84° – 92° |
| September | 94° | 67° | 0.4" | 0.0" | 2 | 0 | 77° – 84° |
| October | 81° | 56° | 0.4" | 0.0" | 2 | 0 | 64° – 75° |
| November | 68° | 45° | 0.4" | 0.0" | 1 | 0 | 48° – 62° |
| December | 57° | 38° | 0.7" | 0.0" | 3 | 0 | 42° – 53° |
| Year | 80° | 56° | 6.0" | 0.5" | 25 | 0 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 51° to 66°. September is the most reliable, staying within 6°.
Where Cal-Nev-Ari’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 Cal-Nev-Ari’s center.
- Snow: Searchlight, NV.
- Frost dates, heating and cooling: Searchlight, NV, 12 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 Cal-Nev-Ari’s climate
What is the weather like in Cal-Nev-Ari?
A typical July afternoon reaches 102°, a January night drops to 39°, and snow is almost unheard of. Milder January nights than 88% of U.S. towns; hotter July afternoons than all but 101 U.S. towns.
How cold does it get in Cal-Nev-Ari in winter?
December nights average 38°. About 23 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 42°.
How much snow does Cal-Nev-Ari get?
About 0.5 inches in a normal winter at Searchlight, NV, so most winters see none.
How hot does it get in Cal-Nev-Ari?
July, with a typical high of 102° and a low of 76°. About 105 days a year reach 90° (Searchlight, NV).
When is the first and last frost in Cal-Nev-Ari?
In half of years the last spring frost (32°) comes by March 7 and the first fall frost by November 29, about 266 frost-free days, at Searchlight, NV.
What growing zone is Cal-Nev-Ari 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 Cal-Nev-Ari?
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 Cal-Nev-Ari getting warmer?
Yes: 1991–2020 averaged 1.6° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 68% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Cal-Nev-Ari.
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.