Average Weather in Piqua Ohio, United States
In Piqua, the summers are long, warm, and humid; the winters are freezing and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 20°F to 83°F and is rarely below 2°F or above 90°F.
Based on the tourism score, the best time of year to visit Piqua for warm-weather activities is from mid June to mid September.
The warm season lasts for 4.0 months, from May 22 to September 21, with an average daily high temperature above 73°F. The hottest day of the year is July 18, with an average high of 83°F and low of 64°F.
The cold season lasts for 3.1 months, from November 30 to March 2, with an average daily high temperature below 44°F. The coldest day of the year is January 29, with an average low of 20°F and high of 34°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
In Piqua, 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 Piqua begins around June 11 and lasts for 4.7 months, ending around November 1. On August 22, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 69% of the time, and overcast or mostly cloudy 31% of the time.
The cloudier part of the year begins around November 1 and lasts for 7.3 months, ending around June 11. On January 2, the cloudiest day of the year, the sky is overcast or mostly cloudy 61% of the time, and clear, mostly clear, or partly cloudy 39% 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 Piqua varies throughout the year.
The wetter season lasts 4.9 months, from March 23 to August 18, with a greater than 30% chance of a given day being a wet day. The chance of a wet day peaks at 41% on May 20.
The drier season lasts 7.1 months, from August 18 to March 23. The smallest chance of a wet day is 18% on January 16.
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 41% on May 20.
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. Piqua experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Piqua. The most rain falls during the 31 days centered around June 1, with an average total accumulation of 3.7 inches.
The least rain falls around February 6, with an average total accumulation of 1.3 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. Piqua experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 4.3 months, from November 23 to April 1, 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 12, with an average total liquid-equivalent accumulation of 0.4 inches.
The snowless period of the year lasts for 7.7 months, from April 1 to November 23. The least snow falls around July 21, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Piqua varies significantly over the course of the year. In 2020, the shortest day is December 21, with 9 hours, 19 minutes of daylight; the longest day is June 20, with 15 hours, 2 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:07 AM on June 13, and the latest sunrise is 1 hour, 59 minutes later at 8:05 AM on October 31. The earliest sunset is at 5:11 PM on December 7, and the latest sunset is 3 hours, 59 minutes later at 9:10 PM on June 27.
Daylight saving time (DST) is observed in Piqua during 2020, starting in the spring on March 8, lasting 7.8 months, and ending in the fall on November 1.
Sunrise & Sunset with Twilight and Daylight Saving Time
Piqua experiences significant seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.8 months, from May 26 to September 18, during which time the comfort level is muggy, oppressive, or miserable at least 12% of the time. The muggiest day of the year is July 22, with muggy conditions 49% of the time.
The least muggy day of the year is January 30, 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 Piqua experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 7.4 months, from October 9 to May 20, with average wind speeds of more than 9.7 miles per hour. The windiest day of the year is January 15, with an average hourly wind speed of 12.4 miles per hour.
The calmer time of year lasts for 4.6 months, from May 20 to October 9. The calmest day of the year is August 3, with an average hourly wind speed of 6.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Piqua varies throughout the year.
The wind is most often from the south for 2.7 weeks, from May 8 to May 27 and for 2.6 months, from August 31 to November 18, with a peak percentage of 37% on November 13. The wind is most often from the west for 3.1 months, from May 27 to August 31 and for 5.7 months, from November 18 to May 8, with a peak percentage of 40% on July 19.
Best Time of Year to Visit
To characterize how pleasant the weather is in Piqua 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 Piqua 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 Piqua 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 Piqua typically lasts for 6.1 months (186 days), from around April 17 to around October 20, rarely starting before April 1 or after May 4, and rarely ending before September 30 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 Piqua should appear around April 4, only rarely appearing before March 20 or after April 18.
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 4.0 months, from April 29 to August 29, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is July 1, 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 20, with an average of 1.7 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Piqua are 40.145 deg latitude, -84.242 deg longitude, and 935 ft elevation.
The topography within 2 miles of Piqua contains only modest variations in elevation, with a maximum elevation change of 138 feet and an average elevation above sea level of 906 feet. Within 10 miles also contains only modest variations in elevation (338 feet). Within 50 miles contains only modest variations in elevation (945 feet).
The area within 2 miles of Piqua is covered by artificial surfaces (70%) and cropland (30%), within 10 miles by cropland (88%), and within 50 miles by cropland (87%).
This report illustrates the typical weather in Piqua, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Piqua.
For each station, the records are corrected for the elevation difference between that station and Piqua 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 Piqua is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Piqua and a given station.
The stations contributing to this reconstruction are: Darke County Airport (42%, 25 kilometers, west); James M Cox Dayton International Airport (39%, 27 kilometers, south); and Bellefontaine Regional Airport (19%, 44 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .