Photo: Jeffrey Beall · CC BY-SA 3.0Precipitation in Fleming trails that of 91% of U.S. towns: 17 inches a year
On a normal January night the air cools to about 17°. Rain follows the seasons: May brings about 9.4 times as much as January. In July, afternoons here are warmer than in 75% of U.S. towns. Warm coats and heating bills mark the months from November to April, when means dip under 50°.
A year in Fleming at a glance
Each month’s typical high and low, and what it brings.
What stands out about Fleming’s climate
Compared with towns across the U.S., with Fleming’s place in Colorado beside it.
What a year in Fleming feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 157 frost-free days a year
In half of years the last 32° night comes by May 4 and the first by October 11. Frost and day counts come from NOAA’s station at Fleming 3sw, CO, 2.5 miles from the town’s center, at about the same height.
The 2023 USDA map puts Fleming’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°
90° days by month
Average days at 90° or more
About 37 inches of snow a winter
Snow, measured at Fleming 3sw, CO, falls mostly in February and December. Precipitation (rain plus melted snow) adds up to 17 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 65 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Fleming
87% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October 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 Fleming 3sw, CO.
Living with Fleming’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
157 frost-free days in zone 5b. The last frost comes by May 4 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 11.
Months with highs of 62–84° and lows of 40° or more: May, June and September.
Parks & trails →Of the yearly building losses FEMA expects in Fleming from natural hazards, hail is the largest share (25%); heat waves, cold waves, winter storms and ice storms together are 26%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Fleming and similar climates
TownRatings has no climate map of the towns around Fleming yet.
Climates most like Fleming’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 |
|---|---|---|---|---|
| Fleming, CO | 17° | 90° | 17" | 37" |
| Logan, UT | 15° | 90° | 18" | 44" |
| Spring Creek, NV | 15° | 89° | 14" | 41" |
| Lockwood, MT | 15° | 88° | 15" | 35" |
| Belle Fourche, SD | 13° | 88° | 19" | 42" |
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 Fleming averaged 1.5° warmer than the 1900s. The biggest change is in March (+3.7°).
A bigger shift than in 58% 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 Fleming compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Fleming’s place among Colorado’s.
Fleming weather by month
Highs, lows and precipitation from NOAA’s grid at Fleming’s center; snow, wet days and snow on the ground from Fleming 3sw, CO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 42° | 17° | 0.3" | 3.7" | 3 | 11 | 19° – 38° |
| February | 44° | 19° | 0.5" | 7.4" | 4 | 10 | 23° – 39° |
| March | 54° | 27° | 0.8" | 4.8" | 4 | 4 | 33° – 49° |
| April | 62° | 34° | 1.8" | 5.1" | 7 | 2 | 42° – 53° |
| May | 71° | 44° | 2.9" | 1.2" | 9 | 0 | 51° – 63° |
| June | 83° | 54° | 2.7" | 0.2" | 8 | 0 | 64° – 75° |
| July | 90° | 60° | 2.6" | 0.0" | 8 | 0 | 70° – 79° |
| August | 87° | 58° | 2.2" | 0.0" | 7 | 0 | 68° – 76° |
| September | 79° | 49° | 1.5" | 0.2" | 5 | 0 | 58° – 69° |
| October | 65° | 36° | 1.3" | 3.1" | 5 | 2 | 41° – 56° |
| November | 52° | 26° | 0.5" | 4.4" | 3 | 4 | 30° – 46° |
| December | 42° | 18° | 0.4" | 6.9" | 3 | 11 | 21° – 36° |
| Year | 64° | 37° | 17.4" | 37.0" | 65 | 44 |
How much a month can swing
A normal is an average. January swings the most: from 1991 to 2020 its average ranged from 19° to 38°. August is the most reliable, staying within 9°.
Where Fleming’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 Fleming’s center.
- Snow: Fleming 3sw, CO.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Fleming 3sw, CO, 2.5 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- 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 Fleming’s climate
What is the weather like in Fleming?
A typical July afternoon reaches 90°, a January night drops to 17°, and about 37 inches of snow falls in a normal winter. Colder January nights than 75% of U.S. towns; hotter July afternoons than 75% of U.S. towns.
How cold does it get in Fleming in winter?
January nights average 17°. About 169 nights a year reach 32° or below and 9 reach 0° or below. In the coldest January of the last 30 years the month averaged 19°.
How much snow does Fleming get?
About 37 inches in a normal winter at Fleming 3sw, CO, most of it in February and December, with snow on the ground about 44 days a year.
How hot does it get in Fleming?
July, with a typical high of 90° and a low of 60°. About 53 days a year reach 90° and 7 reach 100° (Fleming 3sw, CO).
When is the first and last frost in Fleming?
In half of years the last spring frost (32°) comes by May 4 and the first fall frost by October 11, about 157 frost-free days, at Fleming 3sw, CO.
What growing zone is Fleming 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 Fleming?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Fleming getting warmer?
Yes: 1991–2020 averaged 1.5° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 58% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Fleming.
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.