Photo: Jared Winkler · CC BY-SA 4.0Manville is drier than 92% of U.S. towns: 16 inches of precipitation a year
Deep winter brings January lows near 13°. May is the wettest month, January the driest. In January, nights here are colder than in 89% of U.S. towns. Warm coats and heating bills mark the months from October to April, when means dip under 50°.
A year in Manville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Manville’s climate
Compared with towns across the U.S., with Manville’s place in Wyoming beside it.
What a year in Manville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 119 frost-free days a year
In half of years the last 32° night comes by May 23 and the first by September 20. Frost and day counts come from NOAA’s station at Lusk 2 Sw, WY, 7 miles from the town’s center, 160 ft lower.
The 2023 USDA map puts Manville’s center in zone 5a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −18°. 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 16 inches of rain a year
May is the wettest month and January the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Manville
96% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Lusk 2 Sw, WY.
Living with Manville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
119 frost-free days in zone 5a. The last frost comes by May 23 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Sep 20.
Months with highs of 62–84° and lows of 40° or more: June and September.
Parks & trails →Of the yearly building losses FEMA expects in Manville from natural hazards, river flooding is the largest share (38%); heat waves, cold waves, winter storms and ice storms together are 31%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Manville and similar climates
TownRatings has no climate map of the towns around Manville yet.
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 Manville averaged 1.6° warmer than the 1900s. The biggest change is in January (+3.6°).
A bigger shift than in 66% 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 Manville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Manville’s place among Wyoming’s.
Manville weather by month
Highs, lows and precipitation from NOAA’s grid at Manville’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 36° | 13° | 0.5" | 18° – 33° |
| February | 38° | 15° | 0.7" | 16° – 35° |
| March | 48° | 22° | 1.0" | 23° – 44° |
| April | 55° | 28° | 2.1" | 35° – 48° |
| May | 64° | 38° | 2.9" | 44° – 57° |
| June | 77° | 47° | 2.1" | 56° – 68° |
| July | 85° | 54° | 1.9" | 63° – 74° |
| August | 84° | 51° | 1.3" | 63° – 72° |
| September | 74° | 43° | 1.3" | 53° – 64° |
| October | 59° | 30° | 1.3" | 36° – 50° |
| November | 46° | 21° | 0.6" | 20° – 42° |
| December | 36° | 13° | 0.6" | 16° – 30° |
| Year | 58° | 31° | 16.1" |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 20° to 42°. August is the most reliable, staying within 9°.
Where Manville’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 Manville’s center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Lusk 2 Sw, WY, 7 miles from the town’s center, 160 ft lower; 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 Manville’s climate
What is the weather like in Manville?
A typical July afternoon reaches 85°, a January night drops to 13°. Colder January nights than 89% of U.S. towns; cooler July afternoons than 52% of U.S. towns.
How cold does it get in Manville in winter?
January nights average 13°. About 193 nights a year reach 32° or below and 17 reach 0° or below. In the coldest January of the last 30 years the month averaged 18°.
How hot does it get in Manville?
July, with a typical high of 85° and a low of 54°. About 23 days a year reach 90° (Lusk 2 Sw, WY).
When is the first and last frost in Manville?
In half of years the last spring frost (32°) comes by May 23 and the first fall frost by September 20, about 119 frost-free days, at Lusk 2 Sw, WY.
What growing zone is Manville in?
Zone 5a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −18°.
What is the best time of year to visit Manville?
By one simple rule (highs of 62–84° and lows of 40° or more), June and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Manville getting warmer?
Yes: 1991–2020 averaged 1.6° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 66% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Manville.
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.