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Climate in Nenana · NOAA 1991–2020 normals

Nenana has cold winters and cool summers, with very little rain

A typical July afternoon reaches 73°, a January night drops to -12°.

A year in Nenana at a glance

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

Jan5°-12° Coldest
Feb15°-6°
Mar24°1°
Apr45°23°
May63°39° Last frost ~15
Jun72°49° Nice out
Jul73°53° Nice outWarmest
Aug67°48° Nice outWettest
Sep55°37° First frost ~11
Oct now35°21°
Nov15°1°
Dec8°-9°

What stands out about Nenana’s climate

Read from where Nenana sits among Alaska’s towns. The page puts what stands out first.

★ What stands out · Frost & heat

About 117 frost-free days a year

In half of years the last 32° night comes by May 15 and the first by September 11.

228
nights at or below 32° in a normal year
101
nights below 0° in a normal year
<1
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

31
JFMAMJJASOND
Rain & snow

Rain and snow in Nenana

August is the wettest month and April the driest.

12"
Rain + melted snow a year
30th driest of 213 Alaska towns
Less than 96% of U.S. towns

Rain + melted snow by month

Inches of water

2.3"
JFMAMJJASOND

Snowfall by month

No snow records from a nearby station.

A normal year

What a year in Nenana feels like

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

Winter
9° / -9°
Snow is rare
Spring
44° / 21°
Last frost around May 15
Summer
71° / 50°
90° days are rare
Fall
35° / 20°
First frost around Sep 11
Best months to be outsideJunJulAugHighs of 62–84° and lows of 40° or more
Living here

Living with Nenana’s climate

What the numbers mean for a garden, a driveway, a furnace and a free afternoon.

The garden window

117 frost-free days. The last frost comes by May 15 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 11.

Furnace season

Months averaging under 55° run from September through May. Heating is 99% of the year’s heating-and-cooling load.

Summer heat

90° days are rare: July afternoons average 73°.

Get outside

The nicest months are June, July and August. 3.9 miles of trails are waiting.

Parks & trails →
Storms and extremes

Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.

Natural hazards →
Compared with other towns

How Nenana compares

Against every U.S. town on TownTapestry, each counted once, with its place in Alaska.

Summer heat73° July high
Cooler than 99% of U.S. towns7th hottest of 213 Alaska towns
Winter cold-12° January low
Colder than 99% of U.S. towns55th coldest of 213 Alaska towns
Precipitation12" a year
Drier than 96% of U.S. towns30th driest of 213 Alaska towns
Growing season117 frost-free days
Shorter than 98% of U.S. towns102nd shortest of 213 Alaska towns
Month by month

Nenana weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + melt
January5°-12°0.6"
February15°-6°0.4"
March24°1°0.4"
April45°23°0.3"
May63°39°0.6"
June72°49°1.8"
July73°53°2.3"
August67°48°2.3"
September55°37°1.4"
October35°21°0.9"
November15°1°0.8"
December8°-9°0.6"
Year40°20°12.4"
Heating & cooling

Heating and cooling a home in Nenana

99% of the work is heating, so the furnace matters far more than the air conditioner.

99%heating
12,753 heating degree daysMore heating than 99% of U.S. towns
66 cooling degree daysLess cooling than 99% 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. Source: NOAA station normals.

Common questions about Nenana’s climate

What is the coldest month in Nenana?

January, with a typical high of 5° and a low of -12°.

What is the hottest month in Nenana?

July, with a typical high of 73° and a low of 53°.

When is the first frost in Nenana?

In half of years the first 32° night comes by September 11, and the last spring frost by May 15.

What is the rainiest month in Nenana?

August, with 2.3 inches of rain and melted snow. The year totals 12 inches.

Neighbors talk weather

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

Town Square →
Weigh in
Is Nenana’s weather one of its best features?

Your answer becomes a post in Town Square.

Ask your neighbors

NOAA’s gridded normals don’t cover this state, so temperatures and rainfall come from the nearest weather station. Snow, frost dates and day counts come from NOAA’s weather station at Nenana Municipal Airport, AK (1 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020. Today’s forecast: National Weather Service.

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