Average Weather in Winslow Arizona, United States
In Winslow, the summers are hot, the winters are short and very cold, and it is dry and mostly clear year round. Over the course of the year, the temperature typically varies from 22°F to 93°F and is rarely below 11°F or above 99°F.
Based on the tourism score, the best time of year to visit Winslow for warm-weather activities is from early June to late September.
The hot season lasts for 3.6 months, from May 28 to September 15, with an average daily high temperature above 84°F. The hottest day of the year is July 3, with an average high of 93°F and low of 62°F.
The cold season lasts for 2.9 months, from November 22 to February 18, with an average daily high temperature below 56°F. The coldest day of the year is January 8, with an average low of 22°F and high of 48°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 Winslow, 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 Winslow begins around August 25 and lasts for 2.4 months, ending around November 6. On September 27, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 83% of the time, and overcast or mostly cloudy 17% of the time.
The cloudier part of the year begins around November 6 and lasts for 9.6 months, ending around August 25. On February 14, the cloudiest day of the year, the sky is overcast or mostly cloudy 38% of the time, and clear, mostly clear, or partly cloudy 62% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Winslow varies significantly throughout the year.
The wetter season lasts 2.1 months, from July 7 to September 12, with a greater than 19% chance of a given day being a wet day. The chance of a wet day peaks at 34% on August 4.
The drier season lasts 9.9 months, from September 12 to July 7. The smallest chance of a wet day is 3% on June 9.
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 34% on August 4.
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. Winslow experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.3 months, from June 28 to April 6, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around August 8, with an average total accumulation of 1.5 inches.
The rainless period of the year lasts for 2.7 months, from April 6 to June 28. The least rain falls around June 8, with an average total accumulation of 0.2 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Winslow does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Winslow varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 48 minutes of daylight; the longest day is June 21, with 14 hours, 31 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:08 AM on June 12, and the latest sunrise is 2 hours, 23 minutes later at 7:31 AM on January 7. The earliest sunset is at 5:10 PM on December 5, and the latest sunset is 2 hours, 30 minutes later at 7:40 PM on June 28.
Daylight saving time (DST) is not observed in Winslow during 2018.
Sunrise & Sunset with Twilight
The perceived humidity level in Winslow, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
The average hourly wind speed in Winslow experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 4.6 months, from February 15 to July 2, with average wind speeds of more than 8.4 miles per hour. The windiest day of the year is April 10, with an average hourly wind speed of 10.4 miles per hour.
The calmer time of year lasts for 7.5 months, from July 2 to February 15. The calmest day of the year is August 17, with an average hourly wind speed of 6.4 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Winslow varies throughout the year.
The wind is most often from the west for 7.2 months, from February 7 to September 14, with a peak percentage of 58% on July 1. The wind is most often from the south for 2.4 months, from September 14 to November 26, with a peak percentage of 37% on September 19. The wind is most often from the north for 2.3 months, from November 26 to February 7, with a peak percentage of 33% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Winslow 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 Winslow for general outdoor tourist activities is from early June to late 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 Winslow for hot-weather activities is from late June to mid August, with a peak score in the second 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 Winslow typically lasts for 6.0 months (183 days), from around April 24 to around October 24, rarely starting before April 5 or after May 11, and rarely ending before October 4 or after November 12.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Winslow should appear around March 12, only rarely appearing before February 22 or after March 30.
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 2.6 months, from April 24 to July 13, with an average daily incident shortwave energy per square meter above 7.6 kWh. The brightest day of the year is June 13, with an average of 8.7 kWh.
The darker period of the year lasts for 3.2 months, from November 3 to February 10, with an average daily incident shortwave energy per square meter below 4.2 kWh. The darkest day of the year is December 24, with an average of 3.1 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Winslow are 35.024 deg latitude, -110.697 deg longitude, and 4,879 ft elevation.
The topography within 2 miles of Winslow contains only modest variations in elevation, with a maximum elevation change of 118 feet and an average elevation above sea level of 4,870 feet. Within 10 miles contains only modest variations in elevation (568 feet). Within 50 miles contains significant variations in elevation (4,275 feet).
The area within 2 miles of Winslow is covered by shrubs (97%), within 10 miles by shrubs (99%), and within 50 miles by shrubs (82%) and trees (15%).
This report illustrates the typical weather in Winslow, 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 Winslow.
For each station, the records are corrected for the elevation difference between that station and Winslow 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 Winslow is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Winslow and a given station.
The stations contributing to this reconstruction are: Winslow Municipal Airport (100%, 2.2 kilometers, west); Show Low Municipal Airport (0.3%, 106 kilometers, southeast); and Window Rock Airport (0.1%, 164 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .