Norris-Stirling House · Photo: Jerrye & Roy Klotz, MD · CC BY-SA 3.0For weather, Pleasant Hills is about as ordinary as U.S. towns get
The coldest hours of a January night bottom out at 25° on average. Precipitation is plentiful here, more than falls on 71% of U.S. towns. Since 1901–2000, the year has warmed by 1.7°, most of all in December. Garden planting can start around April 10; autumn frost returns near October 30.
A year in Pleasant Hills at a glance
Each month’s typical high and low, and what it brings.
What stands out about Pleasant Hills’ climate
Compared with towns across the U.S., with Pleasant Hills’ place in Maryland beside it.
What a year in Pleasant Hills feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 201 frost-free days a year
In half of years the last 32° night comes by April 10 and the first by October 30. Frost and day counts come from NOAA’s station at Aberdeen Phillips Fld, MD, 12 miles from the town’s center, 290 ft lower.
The 2023 USDA map puts Pleasant Hills’ center in zone 7b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 6°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 47 inches of rain a year
September is the wettest month and February the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Pleasant Hills
80% of the work is heating. Months averaging under 55° run from November through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Aberdeen Phillips Fld, MD.
Living with Pleasant Hills’ climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
201 frost-free days in zone 7b. The last frost comes by Apr 10 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 30.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 9.6 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Pleasant Hills from natural hazards, river flooding is the largest share (57%); heat waves, cold waves, winter storms and ice storms together are 18%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Pleasant Hills and similar climates
TownRatings has no climate map of the towns around Pleasant Hills yet.
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Pleasant Hills averaged 1.7° warmer than the 1900s. The biggest change is in December (+3.0°).
A bigger shift than in 70% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Pleasant Hills compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Pleasant Hills’ place among Maryland’s.
Pleasant Hills weather by month
Highs, lows and precipitation from NOAA’s grid at Pleasant Hills’ center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 42° | 25° | 3.2" | 25° – 41° |
| February | 45° | 26° | 2.7" | 23° – 42° |
| March | 53° | 33° | 4.3" | 36° – 52° |
| April | 66° | 43° | 3.5" | 49° – 59° |
| May | 75° | 53° | 4.0" | 59° – 70° |
| June | 84° | 62° | 4.3" | 69° – 77° |
| July | 88° | 67° | 4.6" | 73° – 81° |
| August | 86° | 65° | 4.4" | 72° – 78° |
| September | 79° | 58° | 4.7" | 65° – 72° |
| October | 68° | 47° | 4.0" | 54° – 64° |
| November | 56° | 36° | 3.4" | 41° – 51° |
| December | 46° | 29° | 3.9" | 30° – 47° |
| Year | 65° | 45° | 47.1" |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 23° to 42°. August is the most reliable, staying within 6°.
Where Pleasant Hills’ numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Pleasant Hills’ center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Aberdeen Phillips Fld, MD, 12 miles from the town’s center, 290 ft lower; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Pleasant Hills’ climate
What is the weather like in Pleasant Hills?
A typical July afternoon reaches 88°, a January night drops to 25°. Milder January nights than 62% of U.S. towns; hotter July afternoons than 66% of U.S. towns.
How cold does it get in Pleasant Hills in winter?
January nights average 25°. About 83 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 25°.
How hot does it get in Pleasant Hills?
July, with a typical high of 88° and a low of 67°. About 26 days a year reach 90° (Aberdeen Phillips Fld, MD).
When is the first and last frost in Pleasant Hills?
In half of years the last spring frost (32°) comes by April 10 and the first fall frost by October 30, about 201 frost-free days, at Aberdeen Phillips Fld, MD.
What growing zone is Pleasant Hills in?
Zone 7b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 6°.
What is the best time of year to visit Pleasant Hills?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Pleasant Hills getting warmer?
Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 70% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Pleasant Hills.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.