Photo: Andrew Filer from Seattle (ex-Minneapolis) · CC BY-SA 2.0Hazen’s winters are colder than most of the U.S.; July afternoons average 83°
A typical July afternoon reaches 83°, a January night drops to 3°.
A year in Hazen at a glance
Each month’s typical high and low, and what it brings.
What stands out about Hazen’s climate
Compared with towns across the U.S., with Hazen’s place in North Dakota beside it.
What a year in Hazen feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 121 frost-free days a year
In half of years the last 32° night comes by May 21 and the first by September 20. Frost and day counts come from NOAA’s station at Beulah 1 W, ND, 8 miles from the town’s center, at about the same height.
The 2023 USDA map puts Hazen’s center in zone 4a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −27°. 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 17 inches of rain a year
June is the wettest month and January the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Hazen
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.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Beulah 1 W, ND.
Living with Hazen’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
121 frost-free days in zone 4a. The last frost comes by May 21 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: May, June, July, August and September.
Parks & trails →Cold waves are 33% of the yearly building losses FEMA expects in Hazen from natural hazards, the largest share. Normals are averages; the hazards page covers the extremes.
Natural hazards →Hazen and similar climates
TownRatings has no climate map of the towns around Hazen 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 Hazen averaged 1.2° warmer than the 1900s. The biggest change is in January (+4.0°).
A smaller shift than in 65% 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 Hazen compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Hazen’s place among North Dakota’s.
Hazen weather by month
Highs, lows and precipitation from NOAA’s grid at Hazen’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 22° | 3° | 0.4" | 0° – 29° |
| February | 27° | 7° | 0.5" | −2° – 30° |
| March | 40° | 18° | 0.7" | 17° – 43° |
| April | 55° | 29° | 1.3" | 33° – 50° |
| May | 68° | 41° | 2.5" | 49° – 61° |
| June | 77° | 52° | 3.3" | 59° – 68° |
| July | 83° | 57° | 2.5" | 63° – 75° |
| August | 83° | 55° | 1.9" | 64° – 74° |
| September | 73° | 45° | 1.7" | 54° – 65° |
| October | 56° | 32° | 1.3" | 36° – 49° |
| November | 39° | 19° | 0.6" | 17° – 41° |
| December | 27° | 8° | 0.6" | 6° – 27° |
| Year | 54° | 30° | 17.2" |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from -2° to 30°. June is the most reliable, staying within 9°.
Where Hazen’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 Hazen’s center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Beulah 1 W, ND, 8 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 Hazen’s climate
What is the weather like in Hazen?
A typical July afternoon reaches 83°, a January night drops to 3°. Colder January nights than all but 88 U.S. towns; cooler July afternoons than 68% of U.S. towns.
How cold does it get in Hazen in winter?
January nights average 3°. About 191 nights a year reach 32° or below and 35 reach 0° or below. In the coldest January of the last 30 years the month averaged 0°.
How hot does it get in Hazen?
July, with a typical high of 83° and a low of 57°. About 29 days a year reach 90° and 4 reach 100° (Beulah 1 W, ND).
When is the first and last frost in Hazen?
In half of years the last spring frost (32°) comes by May 21 and the first fall frost by September 20, about 121 frost-free days, at Beulah 1 W, ND.
What growing zone is Hazen in?
Zone 4a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −27°.
What is the best time of year to visit Hazen?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Hazen getting warmer?
Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 65% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Hazen.
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.