Unity has chilly, snowy winters and pleasant summers. A typical July afternoon reaches 83°, a January night drops to 21°, and about 48 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normalsUpdated once a decade
☀️
July high
83°
1471st coolest of 3,547 Pennsylvania towns
❄️
January low
21°
1316th mildest of 3,547 Pennsylvania towns
💧
Rain + melted snow
47 in
903rd wettest of 3,547 Pennsylvania towns
🌨️
Snow a winter
48 in
701st snowiest of 3,541 Pennsylvania towns
A normal year
What a year in Unity feels like
❄️
Winter
40° / 23°
Typical high / low · 19 days with an inch or more of snow
🌷
Spring
62° / 38°
Typical high / low · Last frost around May 1
☀️
Summer
82° / 59°
Typical high / low · 6 days reach 90° in a normal year
🍂
Fall
64° / 42°
Typical high / low · First frost around Oct 13
10°
20°
40°
50°
60°
70°
80°
90°
100°
32°
38°
21°
41°
22°
50°
29°
63°
38°
72°
48°
80°
57°
83°
61°
82°
59°
76°
52°
64°
41°
52°
33°
42°
26°
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD
32°, freezingBar runs from the typical overnight low up to the afternoon high
Best months to be outsideMayJunJulAugSepOctHighs of 62–84° and lows of 40° or more
Month by month
Unity weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
Month
High
Low
Rain + melt
Snow
Wet days
Snow on ground
30-yr range
January
38°
21°
3.5"
14.6"
15
14
22° – 38°
February
41°
22°
3.1"
10.7"
12
12
18° – 41°
March
50°
29°
3.8"
9.6"
13
6
33° – 50°
April
63°
38°
4.0"
0.8"
13
1
45° – 56°
May
72°
48°
4.4"
0
13
0
53° – 67°
June
80°
57°
4.8"
0
11
0
64° – 70°
July
83°
61°
4.6"
0
11
0
68° – 77°
August
82°
59°
4.2"
0
9
0
67° – 75°
September
76°
52°
3.9"
0
9
0
61° – 68°
October
64°
41°
3.4"
0.3"
9
0
49° – 59°
November
52°
33°
3.5"
2.2"
12
2
36° – 48°
December
42°
26°
3.7"
10.0"
13
10
24° – 45°
Year
62°
41°
47.0"
48.2"
140
44
“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 Unity
Unity gets 47 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 140 days a year. Snow covers the ground about 44 days of the year.
💧
47 in
Rain + melted snow a year
More rain than 77% of U.S. towns
❄️
48 in
Snow in a normal winter
More snow than 80% of U.S. towns
⛄
44 days
With 1"+ of snow on the ground
More than 62% of U.S. towns
Rain + melted snow by month
Inches of water
4.8"
JFMAMJJASOND
Snowfall by month
Inches of snow
15"
JFMAMJJASOND
Frost & the growing season
About 164 frost-free days a year
In half of years the last 32° night comes by May 1 and the first one by October 13. That leaves about 164 frost-free days for gardens, shorter than 67% of U.S. towns.
🌱 May 1
🍂 Oct 13
164 frost-free days
JFMAMJJASOND
🥶
130
nights at or below 32° in a normal year
🧊
2
nights below 0° in a normal year
🔥
6
days that reach 90° in a normal year
Freezing nights by month
Average nights at or below 32°
JFMAMJJASOND
90° days by month
Average days at 90° or more
JFMAMJJASOND
Heating & cooling
Heating and cooling a home in Unity
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Unity, 91% of that work is heating and 9% is cooling, so the furnace matters far more than the air conditioner.
🔥
5,855 heating degree daysMore heating than 52% of U.S. towns
❄️
587 cooling degree daysLess cooling than 70% 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 Unity
Unity and its neighbors
Unity borders 7 towns with climate data. January nights across them vary by 1.3°. Cook has the coldest January nights (20°) and Latrobe the hottest July afternoons (84°). Unity’s January low is 21° and its July high 83°.
Compared with every U.S. town and city on TownTapestry, each counted once.
Then and now
Warmer than it used to be
+0.8°1991–2020 average vs. the 20th century (1901–2000)
The last 30 years in Unity averaged 0.8° warmer than the 1900s. The biggest change is in December (+2.1°). The shift is smaller than in 86% of U.S. towns.
❄️ Winter+1.5°now 31°, was 30°
🌷 Spring+0.9°now 50°, was 49°
☀️ Summer+0.1°now 70°, was 70°
🍂 Fall+0.5°now 53°, was 52°
Change by month1991–2020 average minus 1901–2000 average, at Unity’s spot on NOAA’s grid
+0.0°
+2.1°
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD
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 41°. June is the most reliable, staying within 6°.
10°
20°
30°
40°
50°
60°
70°
80°
90°
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD
Coldest to warmest month in 30 yearsNormal
Questions
Common questions about Unity’s climate
What is the coldest month in Unity?
January, with a typical high of 38° and a low of 21°.
What is the hottest month in Unity?
July, with a typical high of 83° and a low of 61°. About 6 days a year reach 90°.
How much snow does Unity get?
About 48 inches in a normal winter, most of it in January.
When is the first frost in Unity?
In half of years the first 32° night comes by October 13, and the last spring frost by May 1.
What is the rainiest month in Unity?
June, with 4.8 inches of rain and melted snow. The year totals 47 inches.
📍Temperatures and rainfall come from NOAA’s gridded climate normals for Unity itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Derry 4 Sw, PA (5 mi, snow) and Mt Pleasant, PA (6 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.