Emporium, Pennsylvania climate: Normal weather by month, frost dates and records
Emporium's normal year runs from 16°F January nights to 82°F July afternoons, with 43.8 inches of precipitation and 47 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.1°C, January lows of −9°C, July highs of 28°C, 1,114 mm of precipitation a year.
- NOAA stationEmporium
- Station IDUSC00362629
- Location41.51°N 78.23°W
- Elevation1,040 ft (317 m)
- Population1,842
On October 23, the normal high in Emporium is 59°F and the normal low 37°F, and the chance of measurable rain or snow is 43%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Emporium.
- Jan 33° 16°
- Feb 37° 16°
- Mar 46° 24°
- Apr 60° 34°
- May 71° 45°
- Jun 79° 54°
- Jul 82° 59°
- Aug 81° 57°
- Sep 74° 51°
- Oct 62° 39°
- Nov 49° 30°
- Dec 38° 23°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Emporium each month?
July is the warmest month, with normal highs of 82°F; January the coldest, with normal lows of 16°F. The most precipitation falls in July (4.53 in), the least in February (2.32 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 33°F | 16°F | 24.6°F | 3.06 | 12.4 | 16 | <1 | 28 | 9 h 30 min |
| February | 37°F | 16°F | 26.5°F | 2.32 | 10.3 | 12 | <1 | 26 | 10 h 40 min |
| March | 46°F | 24°F | 35.2°F | 3.20 | 10.8 | 14 | <1 | 26 | 11 h 50 min |
| April | 60°F | 34°F | 46.9°F | 3.76 | 0.9 | 15 | <1 | 14 | 13 h 20 min |
| May | 71°F | 45°F | 57.9°F | 3.66 | 0.0 | 14 | <1 | 3 | 14 h 30 min |
| June | 79°F | 54°F | 66.4°F | 4.20 | 0.0 | 13 | 2 | <1 | 15 h 10 min |
| July | 82°F | 59°F | 70.4°F | 4.53 | 0.0 | 13 | 3 | <1 | 14 h 50 min |
| August | 81°F | 57°F | 69.2°F | 4.50 | 0.0 | 12 | 2 | <1 | 13 h 50 min |
| September | 74°F | 51°F | 62.4°F | 4.15 | 0.0 | 11 | <1 | <1 | 12 h 30 min |
| October | 62°F | 39°F | 50.6°F | 3.82 | 0.1 | 13 | <1 | 9 | 11 h 10 min |
| November | 49°F | 30°F | 39.4°F | 3.39 | 3.1 | 14 | <1 | 19 | 9 h 50 min |
| December | 38°F | 23°F | 30.1°F | 3.25 | 9.5 | 16 | <1 | 27 | 9 h 10 min |
| Year (annual) | 59°F | 37°F | 48.3°F | 43.84 | 47.1 | 162 | 7 | 152 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 1°C | −9°C | −4.1°C | 78 mm | 31 cm |
| February | 3°C | −9°C | −3.1°C | 59 mm | 26 cm |
| March | 8°C | −4°C | 1.8°C | 81 mm | 27 cm |
| April | 15°C | 1°C | 8.3°C | 96 mm | 2 cm |
| May | 22°C | 7°C | 14.4°C | 93 mm | 0 cm |
| June | 26°C | 12°C | 19.1°C | 107 mm | 0 cm |
| July | 28°C | 15°C | 21.3°C | 115 mm | 0 cm |
| August | 27°C | 14°C | 20.7°C | 114 mm | 0 cm |
| September | 24°C | 10°C | 16.9°C | 105 mm | 0 cm |
| October | 17°C | 4°C | 10.3°C | 97 mm | 0 cm |
| November | 9°C | −1°C | 4.1°C | 86 mm | 8 cm |
| December | 3°C | −5°C | −1.1°C | 83 mm | 24 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00362629; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Emporium?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, September has the fewest days with rain (11).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00362629.
When is the last frost in Emporium?
In Emporium, the last spring frost (32°F) comes after May 7 in half of years and after May 23 in one year in ten; the first autumn frost comes before October 15 in half of years and before October 1 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 71 year in 10 after May 23; 9 in 10 after April 23
- First autumn frost, half of years before
- October 151 year in 10 before October 1; 9 in 10 before November 1
NOAA puts the median frost-free season at 160 days, and the season without a hard freeze (28°F) at 183 days.
A hard freeze (28°F) comes after April 27 in half of springs and before October 28 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Emporium in zone 5b in ZIP code 15834, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Emporium's NOAA station is in zone 6a: the coldest night of a typical year reaches −8°F (17 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Pennsylvania · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00362629; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Emporium?
In a normal year in Emporium, 7 days a year reach 90°F, 152 nights fall to 32°F or colder and 162 days bring measurable precipitation.
- Days at 90°F or more
- 7a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 152a normal year
- Days that stay below freezing
- 36high of 32°F or less
- Days with 0.01 inch of precipitation
- 162a normal year
- Days with 1 inch of snow or more
- 15a normal year
The highest temperature in this station's record (since 1969) is 101°F, on July 9, 1988; the lowest is −28°F, on January 19, 1994.
The wettest calendar year on that record is 2003, with 56.78 in; the snowiest season is 1993–94, with 81.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00362629; records: ACIS (NOAA Regional Climate Centers), station USC00362629. Records use complete months only; a month missing more than three days is left out.
How sunny is Emporium?
Over a year 67% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Emporium, 3.6 kWh per square metre a day. August is the sunniest month (75%) and December the cloudiest (50%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 54% | 1.5 |
| February | 58% | 2.3 |
| March | 61% | 3.3 |
| April | 65% | 4.5 |
| May | 67% | 5.2 |
| June | 71% | 5.8 |
| July | 75% | 5.8 |
| August | 75% | 5.2 |
| September | 72% | 4.1 |
| October | 63% | 2.7 |
| November | 61% | 1.8 |
| December | 50% | 1.2 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Emporium need?
A normal year in Emporium brings 6,562 heating degree days, 22% more than the median U.S. place (5,373), and 508 cooling degree days, 44% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,563 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,252 | 0 |
| February | 1,078 | 0 |
| March | 924 | 0 |
| April | 545 | 2 |
| May | 249 | 31 |
| June | 62 | 106 |
| July | 9 | 175 |
| August | 15 | 145 |
| September | 125 | 47 |
| October | 450 | 4 |
| November | 770 | 0 |
| December | 1,083 | 0 |
| Year (annual) | 6,562 | 508 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00362629. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Emporium's climate compare?
Emporium is warmer than 29 of the other 107 places with their own NOAA record in Pennsylvania, and wetter than 50. Across the 7,247 U.S. stations with normals, its annual mean of 48.3°F is warmer than 33%.
In the Köppen classification computed from these normals, Emporium is Dfb: continental, no dry season, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Emporium share this climate record?
Prospect Park has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Prospect Park, PA262 people · 1 mi NE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Emporium's climate
What is the coldest month in Emporium?
January, with a normal high of 33°F and a normal low of 16°F. The warmest is July (82°F by day, 59°F at night).
Does it snow in Emporium?
Yes: 47 inches in a normal year, falling on 35 days with 0.1 inch or more, the most in January (12.4 inches).
What is the rainiest month in Emporium?
July, with 4.53 in of precipitation in a normal year; the driest is February with 2.32 in.
What plant hardiness zone is Emporium in?
The USDA's 2023 map puts Emporium in zone 5b in ZIP code 15834, the nearest ZIP area. By the same method at Emporium's NOAA station, the coldest night of a typical year reaches −8°F (17 years, 1991-2020): zone 6a.
How late can frost come in Emporium?
In half of years the last 32°F night comes after May 7; in one year in ten it comes after May 23. Waiting until May 23 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Pennsylvania climateThe statewide normals and every place in the state
- Stevenson Dam, PA13 miles from this station, 47.3°F a year
- Alvin R Bush Dam, PA19 miles from this station, 49.0°F a year
- Clermont (1 mi NW), PA19 miles from this station, 44.2°F a year
- Glen Hazel 2 NE Dam, PA20 miles from this station, 45.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made