Mertztown Weather in June
Average highs run from 76°F on June 1 to 84°F on June 30, and lows from 53°F to 61°F. Normal precipitation for the month is 4.48 in over about 10 wet days.
June day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
June at a glance
- Average high
- 80°F
- Average low
- 58°F
- Precipitation
- 4.48 in
- Record high
- 100°FJun 27, 1966
- Record low
- 39°FJun 11, 1972
- Chance of a freeze
- 0%
- Days of 90°F or more
- 2.8
- Daylight
- 14 h 53 min to 15 h 02 min
- Cloud cover
- 62%
- Humidity
- 77%
- Dew point
- 60°F
- Wind
- 4.3 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jun 1 | 76°F | 53°F | 92°F 2011 | 40°F 2001 | 35% | 0% |
| Jun 2 | 76°F | 54°F | 96°F 2023 | 42°F 1993 | 35% | 0% |
| Jun 3 | 77°F | 54°F | 88°F 1970 | 43°F 1966 | 35% | 0% |
| Jun 4 | 77°F | 54°F | 87°F 1973 | 44°F 1965 | 35% | 0% |
| Jun 5 | 77°F | 54°F | 91°F 2026 | 45°F 1950 | 35% | 0% |
| Jun 6 | 77°F | 55°F | 92°F 2021 | 44°F 1948 | 35% | 0% |
| Jun 7 | 78°F | 55°F | 94°F 1999 | 42°F 1958 | 35% | 0% |
| Jun 8 | 78°F | 55°F | 96°F 2011 | 42°F 2023 | 35% | 0% |
| Jun 9 | 78°F | 56°F | 96°F 2011 | 40°F 1957 | 35% | 0% |
| Jun 10 | 79°F | 56°F | 96°F 2008 | 43°F 1988 | 35% | 0% |
| Jun 11 | 79°F | 56°F | 94°F 1984 | 39°F 1972 | 34% | 0% |
| Jun 12 | 79°F | 57°F | 92°F 1949 | 44°F 1980 | 34% | 0% |
| Jun 13 | 80°F | 57°F | 95°F 1956 | 46°F 1979 | 34% | 0% |
| Jun 14 | 80°F | 57°F | 95°F 1988 | 46°F 1979 | 34% | 0% |
| Jun 15 | 80°F | 58°F | 95°F 1957 | 45°F 1997 | 34% | 0% |
| Jun 16 | 81°F | 58°F | 96°F 1957 | 44°F 1961 | 33% | 0% |
| Jun 17 | 81°F | 58°F | 98°F 1957 | 47°F 1948 | 33% | 0% |
| Jun 18 | 81°F | 59°F | 95°F 1957 | 44°F 1958 | 33% | 0% |
| Jun 19 | 82°F | 59°F | 96°F 1994 | 46°F 1999 | 33% | 0% |
| Jun 20 | 82°F | 59°F | 95°F 2012 | 46°F 2022 | 33% | 0% |
| Jun 21 | 82°F | 59°F | 97°F 1949 | 45°F 1968 | 32% | 0% |
| Jun 22 | 82°F | 60°F | 98°F 2024 | 47°F 1963 | 32% | 0% |
| Jun 23 | 83°F | 60°F | 97°F 2025 | 46°F 1992 | 32% | 0% |
| Jun 24 | 83°F | 60°F | 98°F 2025 | 48°F 2007 | 31% | 0% |
| Jun 25 | 83°F | 60°F | 97°F 1952 | 46°F 1979 | 31% | 0% |
| Jun 26 | 83°F | 61°F | 99°F 1952 | 49°F 1965 | 31% | 0% |
| Jun 27 | 84°F | 61°F | 100°F 1966 | 49°F 2004 | 31% | 0% |
| Jun 28 | 84°F | 61°F | 96°F 1948 | 49°F 1970 | 31% | 0% |
| Jun 29 | 84°F | 61°F | 97°F 1959 | 48°F 1970 | 30% | 0% |
| Jun 30 | 84°F | 61°F | 97°F 1964 | 48°F 1988 | 30% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- June 1
- sunrise 5:34 AM, sunset 8:27 PM
- June 30
- sunrise 5:35 AM, sunset 8:37 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00367578 (Rodale Rsch Ctr), public domain. Records: NOAA GHCN-Daily, station USW00014737, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.