Johnstown weather in July: Johnstown, Pennsylvania: normal highs, lows, rain and records for July
Johnstown in July has a normal high of 79°F and a normal low of 61°F, a daily mean of 70°F, holding near 79°F all month. Measurable precipitation falls on 15 days in a normal July, 4.22 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 16°C, 107 mm of precipitation in July.
- NOAA stationJohnstown Cambria County Airport
- Station IDUSW00004726
- Location40.32°N 78.83°W
- Elevation2,284 ft (696 m)
- From the center5 miles
- Population17,853
- Jan 33° 19°
- Feb 36° 21°
- Mar 45° 28°
- Apr 58° 38°
- May 68° 49°
- Jun 75° 57°
- Jul 79° 61°
- Aug 77° 60°
- Sep 71° 53°
- Oct 59° 43°
- Nov 47° 33°
- Dec 38° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Johnstown in July?
The normal high is 79°F and the normal low 61°F, for a daily mean of 69.9°F. July is 3.9°F warmer than June and 1.3°F warmer than August. July is the warmest month of the year in Johnstown and the 2nd wettest. Across the month the normal high rises 1°F, from 78°F on July 1 to 79°F on July 31. From one year to the next July's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Julys in three average between 68°F and 72°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 47%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 78°F | 60°F | 46% | 29% |
| July 8 | 79°F | 61°F | 47% | 29% |
| July 15 | 79°F | 61°F | 47% | 28% |
| July 22 | 79°F | 62°F | 47% | 27% |
| July 31 | 79°F | 61°F | 46% | 27% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 17, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 78°F | 60°F | 46% | 29% | 15 h |
| July 2 | 78°F | 60°F | 46% | 29% | 15 h |
| July 3 | 78°F | 61°F | 46% | 29% | 15 h |
| July 4 | 78°F | 61°F | 46% | 29% | 15 h |
| July 5 | 78°F | 61°F | 46% | 29% | 15 h |
| July 6 | 78°F | 61°F | 46% | 29% | 15 h |
| July 7 | 79°F | 61°F | 46% | 29% | 15 h |
| July 8 | 79°F | 61°F | 47% | 29% | 15 h |
| July 9 | 79°F | 61°F | 47% | 28% | 14 h 50 min |
| July 10 | 79°F | 61°F | 47% | 28% | 14 h 50 min |
| July 11 | 79°F | 61°F | 47% | 28% | 14 h 50 min |
| July 12 | 79°F | 61°F | 47% | 28% | 14 h 50 min |
| July 13 | 79°F | 61°F | 47% | 28% | 14 h 50 min |
| July 14 | 79°F | 61°F | 47% | 28% | 14 h 50 min |
| July 15 | 79°F | 61°F | 47% | 28% | 14 h 50 min |
| July 16 | 79°F | 61°F | 47% | 28% | 14 h 50 min |
| July 17 | 79°F | 61°F | 47% | 28% | 14 h 40 min |
| July 18 | 79°F | 61°F | 47% | 28% | 14 h 40 min |
| July 19 | 79°F | 62°F | 47% | 28% | 14 h 40 min |
| July 20 | 79°F | 62°F | 47% | 28% | 14 h 40 min |
| July 21 | 79°F | 62°F | 47% | 28% | 14 h 40 min |
| July 22 | 79°F | 62°F | 47% | 27% | 14 h 40 min |
| July 23 | 79°F | 62°F | 47% | 27% | 14 h 40 min |
| July 24 | 79°F | 62°F | 47% | 27% | 14 h 30 min |
| July 25 | 79°F | 62°F | 47% | 27% | 14 h 30 min |
| July 26 | 79°F | 62°F | 47% | 27% | 14 h 30 min |
| July 27 | 79°F | 62°F | 46% | 27% | 14 h 30 min |
| July 28 | 79°F | 62°F | 46% | 27% | 14 h 30 min |
| July 29 | 79°F | 62°F | 46% | 27% | 14 h 30 min |
| July 30 | 79°F | 61°F | 46% | 27% | 14 h 20 min |
| July 31 | 79°F | 61°F | 46% | 27% | 14 h 20 min |
- Normal high
- 79°FJuly average
- Normal low
- 61°FJuly average
- Precipitation
- 4.22 inmonth total
- Days with precipitation
- 150.01 inch or more
- Daylight
- 15 h to 14 h 20 minJuly 1 to July 31
- Days at 70°F or more
- 29
- Days at 80°F or more
- 13
- Sunshine
- 75%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00004726; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Johnstown in July?
On a given July day the chance of 0.01 inch or more is 47% on average, highest around July 18 (47%). In all, 4.22 in falls on 15 days of a normal July, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00004726.
How humid and windy is Johnstown in July?
At 3 p.m. the normal temperature is 76°F with 57% relative humidity and a dew point of 60°F; at 6 a.m. it is 63°F with 87% humidity. The wind averages 6.8 mph, most often from the west in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 63°F | 59°F | 87% | 5.2 mph | – |
| 9 a.m. | 69°F | 61°F | 76% | 6.8 mph | – |
| noon | 74°F | 60°F | 62% | 8.5 mph | – |
| 3 p.m. | 76°F | 60°F | 57% | 9.2 mph | – |
| 6 p.m. | 73°F | 60°F | 62% | 7.9 mph | – |
| 9 p.m. | 68°F | 59°F | 74% | 5.9 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00004726. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for July in Johnstown?
The warmest July temperature on this station's record (since 2000) is 94°F, on July 22, 2011; the coldest is 42°F, on July 2, 2001. The wettest July brought 8.08 in (2012).
The July mean against the 1991-2020 normal of 69.9°F: 2021 69.8°F (−0.1), 2022 71.1°F (+1.2), 2023 70.9°F (+1.0), 2024 73.2°F (+3.3), 2025 73.3°F (+3.4), 2026 70.3°F (+0.4). 5 of 6 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.8°F | −0.1°F | 4.46 in |
| 2022 | 71.1°F | +1.2°F | 3.87 in |
| 2023 | 70.9°F | +1.0°F | 6.08 in |
| 2024 | 73.2°F | +3.3°F | 2.38 in |
| 2025 | 73.3°F | +3.4°F | 2.52 in |
| 2026 | 70.3°F | +0.4°F | 6.66 in |
Source: records: ACIS, station USW00004726; recent months: ACIS, station USW00004726. Records and recent months use complete months only.
How does July in Johnstown compare across Pennsylvania?
Across the 108 places PlainClimate covers in Pennsylvania, July normal highs run from 78°F in Laporte to 89°F in Marcus Hook; Johnstown's is 79°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.