Virginia

Suffolk, Virginia Climate

NOAA 1991-2020 normals for Suffolk Lake Kilby, 1.5 km from Suffolk

The warmest month is July, with an average high of 87°F; the coldest is January, with an average low of 31°F. A normal year brings 51.8 in of precipitation and 5.8 in of snow.

Temperature through the year

The normal daily high and low and the record for every date at Norfolk/Hampton Roads (PVG), since 1945. The line marks today.

Normal daily high and low temperature at Suffolk through the year, in °F, with the record for each date.-250255075100125JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Record high
  • Record low

Normals for Sep 25

Normal high
77°F
Normal low
60°F
Record high
101°Fin 2004
Record low
39°Fin 1950
Chance of a wet day
29%
Daylight
12 h 02 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
January49°F31°F79°F (2002)-5°F (1985)3.66 in10.73.1 in17.27690
February52°F33°F81°F (1977)4°F (1996)2.96 in9.51.5 in13.76260
March59°F39°F88°F (1990)14°F (1980)4.07 in11.20.3 in7.34953
April69°F48°F94°F (1976)24°F (1950)3.62 in10.30.0 in0.422533
May76°F57°F98°F (1991)30°F (1956)3.95 in11.10.0 in0.069112
June83°F65°F105°F (2004)40°F (1945)4.70 in11.20.0 in0.05283
July87°F70°F103°F (1952)49°F (1946)5.69 in11.60.0 in0.00411
August85°F69°F103°F (2004)46°F (1952)5.77 in10.90.0 in0.00367
September80°F63°F101°F (2004)39°F (1950)5.80 in9.50.0 in0.015204
October71°F52°F98°F (1954)23°F (1952)4.26 in8.20.0 in0.016743
November61°F41°F85°F (1950)18°F (1951)3.65 in9.10.0 in4.64344
December53°F35°F80°F (1991)4°F (1983)3.69 in10.40.9 in13.06601
Year69°F50°F51.82 in1245.8 in563,4651,462

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.

51.8 in in a normal year, most in September.

Chance of a wet day

The chance of at least 0.01 inch of precipitation on each date at Suffolk, in percent, and of at least 0.1 inch of snowfall.010203040JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day
  • Chance of snowfall

Snow

NOAA 1991-2020 snowfall normals for Suffolk Lake Kilby.

5.8 in of snow in a normal year.

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Suffolk Lake Kilby. 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 March 27 and the first fall freeze around November 15, a growing season of about 233 days.

Median at 36°F
last April 6, first November 3
Median at 32°F
last March 27, first November 15
Median at 28°F
last March 15, first December 1

Frost dates, growing season and degree days

Humidity and comfort

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

The muggiest month is July, when 86 percent of days are muggy or worse, with a mean dew point of 65°F or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January35°F83%95%3%1%0%0%0%
February37°F82%95%4%1%0%0%0%
March42°F80%88%9%3%0%0%0%
April51°F78%65%18%13%3%0%0%
May59°F77%31%21%25%21%3%0%
June66°F75%5%12%20%33%31%0%
July70°F74%1%4%10%23%58%5%
August69°F76%0%4%14%31%45%7%
September65°F78%9%13%23%27%26%2%
October55°F78%47%19%20%10%4%0%
November46°F80%76%15%6%2%0%0%
December39°F83%91%6%3%1%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 October, with the sky 49 percent covered on average; the cloudiest is February, at 60 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 March, averaging 11.9 mph at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 17, with 14 h 41 min of daylight; the shortest is Dec 16, with 9 h 39 min.

Hours of daylight at Suffolk 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 City of Suffolk 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 City of Suffolk: 80.6°F (+3.3 °F against 1991-2020), the 2nd warmest in 132 years on record.

August 2026 in City of Suffolk: 3.25 in (-1.99 in against 1991-2020), the 30th driest in 132 years on record.

January to August 2026 in City of Suffolk: 63.1°F (+1.8 °F against 1991-2020), the 4th warmest in 132 years on record.

January to August 2026 in City of Suffolk: 26.85 in (-6.44 in against 1991-2020), the 12th driest in 132 years on record.

Warmest August
82.4°F in 1900
Coolest August
72.1°F in 1927
Wettest August
13.66 in in 1992
Driest August
1.08 in in 1975

Every year since 1895

Each year's average temperature in City of Suffolk against the 1991-2020 average, in °F, 1895 to 2025.-6-4-20+2+4+61900192019401960198020002020NOAA NCEI Climate at a Glance

Virginia climate and rankings

Month pages

The weather in Suffolk 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 1945. 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 USC00448192 (Suffolk Lake Kilby), public domain. Records: NOAA GHCN-Daily, station USC00448192, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus. Rankings: NOAA NCEI Climate at a Glance, public domain.