Average Weather in Millersburg Pennsylvania, United States
In Millersburg, the summers are warm and humid, the winters are very cold, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 22°F to 85°F and is rarely below 9°F or above 93°F.
Based on the tourism score, the best time of year to visit Millersburg for warm-weather activities is from mid June to mid September.
The warm season lasts for 3.6 months, from May 27 to September 15, with an average daily high temperature above 75°F. The hottest day of the year is July 20, with an average high of 85°F and low of 65°F.
The cold season lasts for 3.2 months, from November 30 to March 6, with an average daily high temperature below 46°F. The coldest day of the year is January 30, with an average low of 22°F and high of 36°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
Bucharest, Romania (4,883 miles away); Krasnodar, Russia (5,325 miles); and Ijevan, Armenia (5,749 miles) are the far-away foreign places with temperatures most similar to Millersburg (view comparison).
In Millersburg, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Millersburg begins around June 13 and lasts for 4.9 months, ending around November 9. On September 4, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 65% of the time, and overcast or mostly cloudy 35% of the time.
The cloudier part of the year begins around November 9 and lasts for 7.1 months, ending around June 13. On January 11, the cloudiest day of the year, the sky is overcast or mostly cloudy 58% of the time, and clear, mostly clear, or partly cloudy 42% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Millersburg varies throughout the year.
The wetter season lasts 4.5 months, from April 9 to August 27, with a greater than 30% chance of a given day being a wet day. The chance of a wet day peaks at 40% on June 10.
The drier season lasts 7.4 months, from August 27 to April 9. The smallest chance of a wet day is 20% on January 14.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 40% on June 10.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Millersburg experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Millersburg. The most rain falls during the 31 days centered around September 27, with an average total accumulation of 3.6 inches.
The least rain falls around February 7, with an average total accumulation of 1.5 inches.
Average Monthly Rainfall
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Millersburg experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 4.9 months, from November 11 to April 6, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around February 2, with an average total liquid-equivalent accumulation of 0.8 inches.
The snowless period of the year lasts for 7.1 months, from April 6 to November 11. The least snow falls around July 20, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Millersburg varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 16 minutes of daylight; the longest day is June 21, with 15 hours, 5 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:36 AM on June 14, and the latest sunrise is 2 hours, 4 minutes later at 7:40 AM on November 3. The earliest sunset is at 4:40 PM on December 7, and the latest sunset is 4 hours, 2 minutes later at 8:42 PM on June 27.
Daylight saving time (DST) is observed in Millersburg during 2018, starting in the spring on March 11, lasting 7.8 months, and ending in the fall on November 4.
Sunrise & Sunset with Twilight and Daylight Saving Time
Millersburg experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.8 months, from May 29 to September 22, during which time the comfort level is muggy, oppressive, or miserable at least 13% of the time. The muggiest day of the year is July 29, with muggy conditions 50% of the time.
The least muggy day of the year is February 15, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Millersburg experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.5 months, from November 15 to May 1, with average wind speeds of more than 5.2 miles per hour. The windiest day of the year is February 26, with an average hourly wind speed of 6.7 miles per hour.
The calmer time of year lasts for 6.5 months, from May 1 to November 15. The calmest day of the year is August 13, with an average hourly wind speed of 3.6 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Millersburg varies throughout the year.
The wind is most often from the south for 1.7 weeks, from May 10 to May 22 and for 2.1 months, from August 3 to October 7, with a peak percentage of 35% on September 8. The wind is most often from the west for 2.4 months, from May 22 to August 3 and for 7.1 months, from October 7 to May 10, with a peak percentage of 40% on July 8.
Best Time of Year to Visit
To characterize how pleasant the weather is in Millersburg throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Millersburg for general outdoor tourist activities is from mid June to mid September, with a peak score in the last week of August.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Millersburg for hot-weather activities is from late June to late August, with a peak score in the third week of July.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
The growing season in Millersburg typically lasts for 6.3 months (193 days), from around April 14 to around October 24, rarely starting before March 29 or after May 1, and rarely ending before October 7 or after November 10.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Millersburg should appear around April 10, only rarely appearing before March 26 or after April 22.
Growing Degree Days
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.7 months, from May 2 to August 23, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest day of the year is June 28, with an average of 6.9 kWh.
The darker period of the year lasts for 3.2 months, from November 4 to February 11, with an average daily incident shortwave energy per square meter below 2.8 kWh. The darkest day of the year is December 23, with an average of 1.7 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Millersburg are 40.540 deg latitude, -76.961 deg longitude, and 525 ft elevation.
The topography within 2 miles of Millersburg contains very significant variations in elevation, with a maximum elevation change of 876 feet and an average elevation above sea level of 504 feet. Within 10 miles also contains very significant variations in elevation (1,421 feet). Within 50 miles contains very significant variations in elevation (2,264 feet).
The area within 2 miles of Millersburg is covered by cropland (33%), trees (31%), water (24%), and artificial surfaces (13%), within 10 miles by trees (50%) and cropland (43%), and within 50 miles by trees (51%) and cropland (40%).
This report illustrates the typical weather in Millersburg, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Millersburg.
For each station, the records are corrected for the elevation difference between that station and Millersburg according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Millersburg is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Millersburg and a given station.
The stations contributing to this reconstruction are: Penn Valley Airport (34%, 32 kilometers, north); Muir Army Air Field / Indiantown (30%, 35 kilometers, east); Capital City Airport (28%, 37 kilometers, south); and Penn State University Park Airport (8%, 83 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .