Philo, Ohio climate: Normal weather by month, frost dates and records
Philo's normal year runs from 23°F January nights to 84°F July afternoons, with 39.5 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.1°C, January lows of −5°C, July highs of 29°C, 1,004 mm of precipitation a year.
- NOAA stationPhilo (3 mi SW)
- Station IDUSC00336600
- Location39.84°N 81.92°W
- Elevation1,020 ft (311 m)
- From the center2 miles
- Population723
On October 23, the normal high in Philo is 63°F and the normal low 43°F, and the chance of measurable rain or snow is 28%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Philo.
- Jan 38° 23°
- Feb 42° 26°
- Mar 52° 33°
- Apr 66° 43°
- May 74° 53°
- Jun 80° 60°
- Jul 84° 64°
- Aug 83° 63°
- Sep 77° 56°
- Oct 66° 46°
- Nov 53° 36°
- Dec 43° 28°
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 Philo each month?
July is the warmest month, with normal highs of 84°F; January the coldest, with normal lows of 23°F. The most precipitation falls in June (4.49 in), the least in February (2.14 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 38°F | 23°F | 30.8°F | 2.74 | 11 | <1 | 27 | 9 h 40 min |
| February | 42°F | 26°F | 34.0°F | 2.14 | 9 | <1 | 24 | 10 h 40 min |
| March | 52°F | 33°F | 42.8°F | 3.17 | 10 | <1 | 19 | 11 h 50 min |
| April | 66°F | 43°F | 54.5°F | 3.75 | 11 | <1 | 7 | 13 h 10 min |
| May | 74°F | 53°F | 63.1°F | 4.09 | 11 | <1 | 1 | 14 h 20 min |
| June | 80°F | 60°F | 70.4°F | 4.49 | 10 | 1 | <1 | 15 h |
| July | 84°F | 64°F | 74.2°F | 4.18 | 10 | 3 | <1 | 14 h 40 min |
| August | 83°F | 63°F | 72.9°F | 3.25 | 8 | 2 | <1 | 13 h 50 min |
| September | 77°F | 56°F | 66.5°F | 3.40 | 7 | 1 | <1 | 12 h 30 min |
| October | 66°F | 46°F | 55.8°F | 2.89 | 9 | <1 | 5 | 11 h 10 min |
| November | 53°F | 36°F | 44.9°F | 2.74 | 9 | <1 | 15 | 10 h |
| December | 43°F | 28°F | 35.5°F | 2.68 | 10 | <1 | 25 | 9 h 20 min |
| Year (annual) | 63°F | 44°F | 53.8°F | 39.52 | 113 | 6 | 123 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 4°C | −5°C | −0.7°C | 70 mm |
| February | 6°C | −4°C | 1.1°C | 54 mm |
| March | 11°C | 1°C | 6.0°C | 81 mm |
| April | 19°C | 6°C | 12.5°C | 95 mm |
| May | 23°C | 11°C | 17.3°C | 104 mm |
| June | 27°C | 16°C | 21.3°C | 114 mm |
| July | 29°C | 18°C | 23.4°C | 106 mm |
| August | 28°C | 17°C | 22.7°C | 83 mm |
| September | 25°C | 13°C | 19.2°C | 86 mm |
| October | 19°C | 8°C | 13.2°C | 73 mm |
| November | 12°C | 2°C | 7.2°C | 70 mm |
| December | 6°C | −2°C | 1.9°C | 68 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, McConnellsville Lake 7 (13 miles away), gets 19 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00336600; 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 Philo?
Normal highs sit between 65°F and 85°F in April, May, June, July, August, September and October. Of those, September has the fewest days with rain (7).
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 USC00336600.
When is the last frost in Philo?
In Philo, the last spring frost (32°F) comes after April 19 in half of years and after May 9 in one year in ten; the first autumn frost comes before October 25 in half of years and before October 9 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
- April 191 year in 10 after May 9; 9 in 10 after April 2
- First autumn frost, half of years before
- October 251 year in 10 before October 9; 9 in 10 before November 7
NOAA puts the median frost-free season at 189 days, and the season without a hard freeze (28°F) at 217 days.
A hard freeze (28°F) comes after April 4 in half of springs and before November 5 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Philo in zone 6b in ZIP code 43734, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Philo's NOAA station is in zone 6b: the coldest night of a typical year reaches −4°F (22 complete years).
Frost dates for every NOAA station in Ohio · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00336600; 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 Philo?
In a normal year in Philo, 6 days a year reach 90°F, 123 nights fall to 32°F or colder and 113 days bring measurable precipitation.
- Days at 90°F or more
- 6a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 123a normal year
- Days that stay below freezing
- 38high of 32°F or less
- Days with 0.01 inch of precipitation
- 113a normal year
The highest temperature in this station's record (since 1895) is 106°F, on July 25, 1934; the lowest is −27°F, on January 19, 1994.
The wettest calendar year on that record is 2004, with 55.14 in; the snowiest season is 1950–51, with 70.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00336600; records: ACIS (NOAA Regional Climate Centers), station USC00336600. Records use complete months only; a month missing more than three days is left out.
How sunny is Philo?
Over a year 71% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Philo, 3.9 kWh per square metre a day. August is the sunniest month (79%) and December the cloudiest (56%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 57% | 1.7 |
| February | 59% | 2.5 |
| March | 64% | 3.6 |
| April | 69% | 4.8 |
| May | 71% | 5.5 |
| June | 76% | 6.1 |
| July | 77% | 5.9 |
| August | 79% | 5.4 |
| September | 78% | 4.5 |
| October | 70% | 3.1 |
| November | 68% | 2.2 |
| December | 56% | 1.5 |
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 Philo need?
A normal year in Philo brings 5,033 heating degree days, 6% fewer than the median U.S. place (5,373), and 972 cooling degree days, 7% more 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 3,569 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,061 | 0 |
| February | 868 | 0 |
| March | 694 | 5 |
| April | 340 | 25 |
| May | 140 | 83 |
| June | 26 | 186 |
| July | 2 | 286 |
| August | 6 | 251 |
| September | 68 | 114 |
| October | 306 | 21 |
| November | 605 | 1 |
| December | 916 | 0 |
| Year (annual) | 5,033 | 972 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00336600. 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 Philo's climate compare?
Philo is warmer than 85 of the other 98 places with their own NOAA record in Ohio, and wetter than 24. Across the 7,247 U.S. stations with normals, its annual mean of 53.8°F is warmer than 56%.
In the Köppen classification computed from these normals, Philo is Dfa: continental, no dry season, hot 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 Philo share this climate record?
3 places have no NOAA station with 1991-2020 normals of their 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.
- South Zanesville, OH1,899 people · 7 mi NW
- Roseville, OH1,744 people · 9 mi W
- Duncan Falls, OH1,458 people · 3 mi N
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 Philo's climate
What is the coldest month in Philo?
January, with a normal high of 38°F and a normal low of 23°F. The warmest is July (84°F by day, 64°F at night).
Does it snow in Philo?
Yes. NOAA publishes no 1991-2020 snowfall normal for Philo's NOAA station; the nearest record that keeps one, McConnellsville Lake 7 (13 miles away), records 19 inches of snow in a normal year.
What is the rainiest month in Philo?
June, with 4.49 in of precipitation in a normal year; the driest is February with 2.14 in.
What plant hardiness zone is Philo in?
The USDA's 2023 map puts Philo in zone 6b in ZIP code 43734, the nearest ZIP area. By the same method at Philo's NOAA station, the coldest night of a typical year reaches −4°F (22 years, 1991-2020): zone 6b.
How late can frost come in Philo?
In half of years the last 32°F night comes after April 19; in one year in ten it comes after May 9. Waiting until May 9 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Ohio climateThe statewide normals and every place in the state
- Zanesville, OH7 miles from this station, 53.0°F a year
- McConnellsville Lake 7, OH13 miles from this station, 52.2°F a year
- New Lexington, OH17 miles from this station, 50.7°F a year
- Cambridge, OH22 miles from this station, 52.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made