Climate · Mifflinburg

Mifflinburg, PA climate

Mifflinburg has chilly winters and warm summers. A typical July afternoon reaches 85°, a January night drops to 20°, and about 29 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
85°
906th hottest of 3,547 Pennsylvania towns
January low
20°
1670th mildest of 3,547 Pennsylvania towns
Rain + melted snow
43 in
954th driest of 3,547 Pennsylvania towns
Snow a winter
29 in
1470th least snowy of 3,541 Pennsylvania towns
A normal year

What a year in Mifflinburg feels like

Winter

38° / 22°
Typical high / low · 8 days with an inch or more of snow

Spring

61° / 38°
Typical high / low · Last frost around Apr 25

Summer

83° / 60°
Typical high / low · 24 days reach 90° in a normal year

Fall

63° / 42°
Typical high / low · First frost around Oct 19
Best months to be outsideMayJunAugSepOctHighs of 62–84° and lows of 40° or more
Month by month

Mifflinburg weather by month

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

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January36°20°3.0" 9.7"1212 19° – 36°
February39°21°2.4" 7.6"1011 18° – 37°
March49°28°3.4" 5.6"116 32° – 49°
April62°38°3.6" 0.6"120 45° – 55°
May73°48°3.8" 0130 55° – 66°
June80°58°4.0" 0120 66° – 72°
July85°62°4.2" 0110 69° – 78°
August83°60°3.8" 0110 67° – 75°
September76°53°4.4" 0100 62° – 68°
October64°42°3.8" 0.2"110 48° – 59°
November51°33°3.1" 1.2"101 36° – 46°
December40°25°3.2" 4.1"116 24° – 42°
Year61°41°42.8"29.0"13335

“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.

Rain & snow

Rain and snow in Mifflinburg

Mifflinburg gets 43 inches of rain and melted snow a year. September is the wettest month and February the driest. Rain or snow falls on about 133 days a year. Snow covers the ground about 35 days of the year.

43 in
Rain + melted snow a year
More rain than 61% of U.S. towns
29 in
Snow in a normal winter
More snow than 56% of U.S. towns
35 days
With 1"+ of snow on the ground
More than 56% of U.S. towns

Rain + melted snow by month

Inches of water
4.4"

Snowfall by month

Inches of snow
9.7"
Frost & the growing season

About 175 frost-free days a year

In half of years the last 32° night comes by April 25 and the first one by October 19. That leaves about 175 frost-free days for gardens, shorter than 54% of U.S. towns.

142
nights at or below 32° in a normal year
3
nights below 0° in a normal year
24
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

90° days by month

Average days at 90° or more
Heating & cooling

Heating and cooling a home in Mifflinburg

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Mifflinburg, 87% of that work is heating and 13% is cooling, so the furnace matters far more than the air conditioner.

87%heating
5,607 heating degree daysLess heating than 54% of U.S. towns
814 cooling degree daysLess cooling than 52% of U.S. towns

Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.

Around Mifflinburg

Mifflinburg and its neighbors

Mifflinburg borders 3 towns with climate data. January nights across them vary by 2.8°. West Buffalo has the coldest January nights (17°) and Buffalo the hottest July afternoons (85°). Mifflinburg’s January low is 20° and its July high 85°.

White Deer: January low 19°, July high 84°Lewis: January low 20°, July high 85°Washington: January low 18°, July high 83°Jackson: January low 20°, July high 84°New Berlin: January low 20°, July high 84°Center: January low 20°, July high 84°Union: January low 20°, July high 84°Kelly: January low 20°, July high 85°Lewisburg: January low 20°, July high 85°East Buffalo: January low 20°, July high 85°West Buffalo: January low 17°, July high 81°Limestone: January low 20°, July high 85°Buffalo: January low 20°, July high 85°Mifflinburg: January low 20°, July high 85° MifflinburgWest BuffaloLimestoneBuffalo
ColderMilder17° to 20°
West Buffalo17.4° −2.6°
Buffalo19.8° −0.2°
Mifflinburg20.0°
Limestone20.2° +0.2°

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.

Compared with other towns

How Mifflinburg compares

Summer heat85° July high
Hotter than 52% of U.S. towns906th hottest of 3,547 Pennsylvania towns
Winter cold20° January low
Milder than 54% of U.S. towns1670th mildest of 3,547 Pennsylvania towns
Precipitation43" a year
Wetter than 61% of U.S. towns954th driest of 3,547 Pennsylvania towns
Snow29" a winter
Snowier than 56% of U.S. towns1470th least snowy of 3,541 Pennsylvania towns
Growing season175 frost-free days
Shorter than 54% of U.S. towns1716th shortest of 3,547 Pennsylvania towns

Compared with every U.S. town and city on TownTapestry, each counted once.

Then and now

Warmer than it used to be

+1.2°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Mifflinburg averaged 1.2° warmer than the 1900s. The biggest change is in December (+2.7°). The shift is smaller than in 54% of U.S. towns.

❄️ Winter+2.0° now 30°, was 28°
🌷 Spring+0.7° now 50°, was 49°
☀️ Summer+1.0° now 71°, was 70°
🍂 Fall+1.0° now 53°, was 52°

Change by month1991–2020 average minus 1901–2000 average, at Mifflinburg’s spot on NOAA’s grid

Year to year

How much a month can swing

A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 18° to 37°. June is the most reliable, staying within 6°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Mifflinburg’s climate

What is the coldest month in Mifflinburg?

January, with a typical high of 36° and a low of 20°.

What is the hottest month in Mifflinburg?

July, with a typical high of 85° and a low of 62°. About 24 days a year reach 90°.

How much snow does Mifflinburg get?

About 29 inches in a normal winter, most of it in January.

When is the first frost in Mifflinburg?

In half of years the first 32° night comes by October 19, and the last spring frost by April 25.

What is the rainiest month in Mifflinburg?

September, with 4.4 inches of rain and melted snow. The year totals 43 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Mifflinburg itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Selinsgrove 2 S, PA (14 mi, snow) and Laurelton Ctr, PA (9 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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