Alaska

Two Rivers, Alaska Climate

NOAA 1991-2020 normals for Two Rivers, 4 km from Two Rivers

The warmest month is July, with an average high of 75°F; the coldest is January, with an average low of -13°F. A normal year brings 15.8 in of precipitation and 61.4 in of snow.

Temperature through the year

The normal daily high and low and the record for every date at Eielson Afb (PAEI), since 1946. The line marks today.

Normal daily high and low temperature at Two Rivers through the year, in °F, with the record for each date.-100-50050100JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Record high
  • Record low

Normals for Sep 24

Normal high
52°F
Normal low
31°F
Record high
65°Fin 1997
Record low
13°Fin 1972
Chance of a wet day
39%
Daylight
12 h 03 min

Month by month

Averages for 1991-2020. Wet days have at least 0.01 inch of precipitation. Freeze nights have a low of 32°F or colder; degree days are on a 65°F base. Each month links to its own page.

MonthAvg highAvg lowRecord highRecord lowPrecipitationWet daysSnowfallFreeze nightsHeating DDCooling DD
January6°F-13°F52°F (2009)-64°F (1971)0.55 in6.710.5 in30.92,1190
February18°F-4°F50°F (2003)-60°F (1947)0.57 in5.36.9 in28.01,6370
March29°F1°F56°F (1998)-50°F (1956)0.39 in4.36.0 in30.91,5510
April49°F22°F75°F (2009)-26°F (1950)0.40 in3.32.1 in27.28910
May65°F34°F92°F (1947)4°F (1964)1.02 in8.30.7 in13.74841
June74°F45°F93°F (1969)27°F (1997)2.41 in11.80.0 in1.417817
July75°F49°F92°F (1958)36°F (1971)3.19 in14.90.0 in0.112228
August68°F44°F91°F (1994)22°F (1984)3.13 in16.60.0 in2.02908
September56°F34°F82°F (1957)3°F (2010)1.95 in13.21.4 in11.85930
October36°F18°F75°F (2003)-36°F (1975)0.88 in9.612.1 in29.41,1800
November16°F-2°F50°F (1976)-45°F (1990)0.73 in8.112.7 in29.81,7440
December9°F-10°F48°F (1985)-61°F (1961)0.59 in7.19.0 in31.02,0310
Year41°F18°F15.81 in10961.4 in23612,81954

Precipitation

Rain and melted snow together. The chance of a wet day is the share of days with at least 0.01 inch of precipitation.

15.8 in in a normal year, most in July.

Chance of a wet day

The chance of at least 0.01 inch of precipitation on each date at Two Rivers, in percent, and of at least 0.1 inch of snowfall.0204060JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day
  • Chance of snowfall

Snow

NOAA 1991-2020 snowfall normals for Two Rivers.

61.4 in of snow in a normal year.

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Two Rivers. A median date has an even chance of a later freeze in spring, or an earlier one in fall.

The last spring freeze typically comes around May 30 and the first fall freeze around September 2, a growing season of about 95 days.

Median at 32°F
last May 30, first September 2
Median at 28°F
last May 16, first September 16

Frost dates, growing season and degree days

Humidity and comfort

NASA POWER reanalysis, 1991-2020, for the grid cell around Two Rivers.

Days with a mean dew point of 65°F or more are rare here in every month.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January-6°F93%100%0%0%0%0%0%
February0°F93%100%0%0%0%0%0%
March5°F92%100%0%0%0%0%0%
April23°F88%100%0%0%0%0%0%
May37°F74%100%0%0%0%0%0%
June48°F75%92%7%0%0%0%0%
July51°F79%82%16%1%0%0%0%
August47°F83%93%6%0%0%0%0%
September37°F86%100%0%0%0%0%0%
October20°F92%100%0%0%0%0%0%
November2°F94%100%0%0%0%0%0%
December-2°F93%100%0%0%0%0%0%

Comfort is judged by the day's mean dew point: dry below 55°F, comfortable to 60°F, humid to 65°F, muggy to 70°F, oppressive to 75°F, miserable above.

Clouds

Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.

The clearest month is March, with the sky 49 percent covered on average; the cloudiest is July, at 75 percent.

Wind

The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.

The windiest month is January, averaging 11.4 mph at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 18, with 21 h 52 min of daylight; the shortest is Dec 20, with 3 h 40 min.

Hours of daylight at Two Rivers through the year.0510152025JanFebMarAprMayJunJulAugSepOctNovDec
  • Day length

Solar energy

Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.

Sunrise and sunset calendar

How Fairbanks North Star Borough is running

NOAA NCEI Climate at a Glance, from the nClimGrid analysis of every station, updated early each month. A rank of 1 is the highest or lowest of all years since 1895.

August 2026 in Fairbanks North Star Borough: 55.6°F (+3.1 °F against 1991-2020), the 11th warmest in 102 years on record.

August 2026 in Fairbanks North Star Borough: 3.16 in (-0.06 in against 1991-2020), the 44th wettest in 102 years on record.

January to August 2026 in Fairbanks North Star Borough: 28.9°F (-3.9 °F against 1991-2020), the 17th coolest in 102 years on record.

January to August 2026 in Fairbanks North Star Borough: 12.95 in (+0.69 in against 1991-2020), the 30th wettest in 102 years on record.

Warmest August
58.2°F in 1977
Coolest August
45.6°F in 1969
Wettest August
9.21 in in 1930
Driest August
0.57 in in 2004

Every year since 1925

Each year's average temperature in Fairbanks North Star Borough against the 1991-2020 average, in °F, 1925 to 2025.-10-50+5+1019401960198020002020NOAA NCEI Climate at a Glance

Alaska climate and rankings

Month pages

The weather in Two Rivers in each month, day by day.

What this means

A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.

A record is the highest or lowest value on the date in every year the station has reported, back to 1946. It rests on one station, so a neighbor a few miles away can hold different ones.

Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.

More for this place

Nearby

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00509489 (Two Rivers), public domain. Records: NOAA GHCN-Daily, station USC00502707, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus. Rankings: NOAA NCEI Climate at a Glance, public domain.