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Climate in Gypsum · NOAA 1991–2020 normals

Dry weather: only 14 inches of rain and melted snow a year in Gypsum, less than in 94% of U.S. towns

In July the day’s top temperature is typically 86°. Its January nights bite harder than in 93% of U.S. towns. The latest 30-year average runs 1.3° warmer than 1901–2000’s, with March up the most. For walks and days out, June, August and September bring highs of 76–84°.

Colder January nights than 93% of U.S. towns#18 coldest of 149 in CO
More snow than 73% of U.S. towns#90Snowiest  of 148 in CO
All CO rankings →

A year in Gypsum at a glance

Each month’s typical high and low, and what it brings.

Jan35°11° 14" snow
Feb40°16° 6" snow
Mar51°24°
Apr58°29°
May69°37° Last frost ~May 13
Jun80°44° 6 days 90°+
Jul86°51° 18 days 90°+
Aug84°49° 12 days 90°+
Sep76°41° 2 days 90°+Wettest
Oct62°31° First frost ~Oct 3
Nov now47°21° 4" snow
Dec35°12° 11" snow

What stands out about Gypsum’s climate

Compared with towns across the U.S., with Gypsum’s place in Colorado beside it.

A normal year

What a year in Gypsum feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
37° / 13°
15 days with 1"+ of snow
Spring
59° / 30°
Last frost around May 13
Summer
84° / 48°
44 days reach 90°
Fall
62° / 31°
First frost around Oct 3
Best months to be outsideJunAugSepHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 142 frost-free days a year

In half of years the last 32° night comes by May 13 and the first by October 3. Day counts come from NOAA’s station at Shoshone, CO, 15 miles from the town’s center, 540 ft lower; frost dates and degree days from Glenwood Spgs #2, CO, 20 miles away.

Short record. NOAA estimated Shoshone, CO’s counts from 6 years of data and its neighbors’, not a full 30-year record.
143
nights at or below 32° in a normal year
135th most of 149 in Colorado
More freezing nights than 80% of U.S. towns
2
nights at or below 0°
144th most of 149 in Colorado
More nights at or below 0° than 50% of U.S. towns
44
days that reach 90°
50th most of 149 in Colorado
More 90° days than 72% of U.S. towns
<1
days that reach 100°
100th most of 149 in Colorado
More 100° days than 52% of U.S. towns
5bUSDA zone
Plant hardiness zone 5b

The 2023 USDA map puts Gypsum’s center in zone 5b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −13°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

31
JFMAMJJASOND

90° days by month

Average days at 90° or more

18
JFMAMJJASOND
Rain & snow

About 39 inches of snow a winter

Snow, measured at Glenwood Spgs #2, CO, falls mostly in January. Precipitation (rain plus melted snow) adds up to 14 inches a year; September is the wettest month and June the driest. Rain or snow falls on about 75 days a year.

14"
Rain + melted snow a year
40th driest of 149 in Colorado
Drier than 94% of U.S. towns
39"
Snow in a normal winter
90th snowiest of 148 in Colorado
More snow than 73% of U.S. towns

Rain + melted snow by month

Inches of water

1.5"
JFMAMJJASOND

Snowfall by month

Inches of snow

14"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Gypsum

94% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through May.

6,723 heating degree daysMore heating than 83% of U.S. towns
423 cooling degree daysLess cooling than 90% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Glenwood Spgs #2, CO.

Living here

Living with Gypsum’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

142 frost-free days in zone 5b. The last frost comes by May 13 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 3.

Get outside

Months with highs of 62–84° and lows of 40° or more: June, August and September. 19 miles of trails are waiting.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Gypsum from natural hazards, avalanches are the largest share (66%). Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door & far away

Gypsum and similar climates

TownRatings has no climate map of the towns around Gypsum yet.

Climates most like Gypsum’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.

TownJan. lowJuly highPrecip.Snow
Gypsum, CO11°86°14"39"
Sheridan, WY11°89°15"33"
Lockwood, MT15°88°15"35"
Alliance, NE13°88°17"45"
Taos, NM11°84°13"28"

Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.

Then and now

Warmer than it used to be

The last 30 years in Gypsum averaged 1.3° warmer than the 1900s. The biggest change is in March (+2.9°).

+1.3°1991–2020 vs. 1901–2000

A smaller shift than in 55% of U.S. towns.

Winter+1.5°now 25°, was 23°
Spring+1.3°now 45°, was 43°
Summer+1.4°now 66°, was 64°
Fall+0.9°now 46°, was 45°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Gypsum compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Gypsum’s place among Colorado’s.

Summer heat86° July high
Hotter July afternoons than 58% of U.S. towns109th hottest of 149 in Colorado
Winter cold11° January low
Colder January nights than 93% of U.S. towns18th coldest of 149 in Colorado
Precipitation14" a year
Drier than 94% of U.S. towns40th driest of 149 in Colorado
Snow39" a winter
More snow than 73% of U.S. towns90th snowiest of 148 in Colorado
Hot days44 days at 90°+
More 90° days than 72% of U.S. towns50th most of 149 in Colorado
Freezing nights143 a year
More freezing nights than 80% of U.S. towns135th most of 149 in Colorado
Growing season142 frost-free days
A shorter frost-free season than 96% of U.S. towns28th shortest of 145 in Colorado
Month by month

Gypsum weather by month

Highs, lows and precipitation from NOAA’s grid at Gypsum’s center; snow, wet days and snow on the ground from Glenwood Spgs #2, CO. 1991–2020 normals.

MonthHighLowRain + meltSnowWet days30-yr range
January35°11°1.0"13.7"818° – 29°
February40°16°0.9"6.3"623° – 34°
March51°24°1.0"2.4"632° – 43°
April58°29°1.5"0.6"739° – 49°
May69°37°1.3"0.0"648° – 57°
June80°44°0.9"0.0"558° – 67°
July86°51°1.3"0.0"565° – 73°
August84°49°1.3"0.0"764° – 71°
September76°41°1.5"0.0"653° – 63°
October62°31°1.3"0.7"640° – 52°
November47°21°0.9"4.4"626° – 41°
December35°12°1.0"10.8"719° – 30°
Year60°31°13.9"38.9"75
Year to year

How much a month can swing

A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 26° to 41°. August is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Gypsum’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 Gypsum’s center.
  • Snow: Glenwood Spgs #2, CO.
  • Frost dates, heating and cooling: Glenwood Spgs #2, CO, 20 miles away.
  • Freezing nights, 90° and 100° days: Shoshone, CO, 15 miles from the town’s center, 540 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 Gypsum’s climate

What is the weather like in Gypsum?

A typical July afternoon reaches 86°, a January night drops to 11°, and about 39 inches of snow falls in a normal winter. Colder January nights than 93% of U.S. towns; hotter July afternoons than 58% of U.S. towns.

How cold does it get in Gypsum in winter?

January nights average 11°. About 143 nights a year reach 32° or below and 2 reach 0° or below. In the coldest January of the last 30 years the month averaged 18°.

How much snow does Gypsum get?

About 39 inches in a normal winter at Glenwood Spgs #2, CO, most of it in January.

How hot does it get in Gypsum?

July, with a typical high of 86° and a low of 51°. About 44 days a year reach 90° (Glenwood Spgs #2, CO).

When is the first and last frost in Gypsum?

In half of years the last spring frost (32°) comes by May 13 and the first fall frost by October 3, about 142 frost-free days, at Glenwood Spgs #2, CO.

What growing zone is Gypsum in?

Zone 5b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −13°.

What is the best time of year to visit Gypsum?

By one simple rule (highs of 62–84° and lows of 40° or more), June, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is Gypsum getting warmer?

Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 55% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Gypsum.

Town Square →
Ask your neighbors

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.