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Average Weather in Thatcher Arizona, United States

In Thatcher, the summers are sweltering and partly cloudy and the winters are cold, dry, and mostly clear. Over the course of the year, the temperature typically varies from 35°F to 101°F and is rarely below 26°F or above 107°F.

Climate Summary

coolcomfortablewarmhotswelteringhotwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec83%83%55%55%clearovercastprecipitation: 2.0 inprecipitation: 2.0 in0.2 in0.2 inmuggy: 10%muggy: 10%0%0%drydrytourism score: 7.2tourism score: 7.21.41.4
Click on each chart for more information.

Based on the tourism score, the best times of year to visit Thatcher for warm-weather activities are from late April to late June and from late August to mid October.

Temperature

The hot season lasts for 3.8 months, from May 22 to September 14, with an average daily high temperature above 92°F. The hottest day of the year is June 29, with an average high of 101°F and low of 71°F.

The cool season lasts for 3.0 months, from November 21 to February 20, with an average daily high temperature below 68°F. The coldest day of the year is January 4, with an average low of 35°F and high of 60°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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

Average Hourly Temperature in ThatcherJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMvery coldvery coldcoldcoldcoldcoldcoolcoolwarmwarmhotswelteringcomfortablevery coldvery cold
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Qurayyat, Saudi Arabia (7,518 miles away) and Fīrūzābād, Iran (8,029 miles) are the far-away foreign places with temperatures most similar to Thatcher (view comparison).

Clouds

In Thatcher, 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 Thatcher begins around March 16 and lasts for 3.7 months, ending around July 6. On June 9, 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 July 6 and lasts for 8.3 months, ending around March 16. On July 30, the cloudiest day of the year, the sky is overcast or mostly cloudy 45% of the time, and clear, mostly clear, or partly cloudy 55% of the time.

Cloud Cover Categories

Cloud Cover Categories in ThatcherclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jun 983%Jun 983%Jul 3055%Jul 3055%Mar 1669%Mar 1669%Jul 670%Jul 670%clearovercastmostly clearpartly cloudy
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Thatcher varies significantly throughout the year.

The wetter season lasts 2.1 months, from July 4 to September 9, with a greater than 22% chance of a given day being a wet day. The chance of a wet day peaks at 40% on August 3.

The drier season lasts 9.9 months, from September 9 to July 4. The smallest chance of a wet day is 3% on June 7.

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 August 3.

Daily Chance of Precipitation

Daily Chance of Precipitation in ThatcherwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Aug 340%Aug 340%Jun 73%Jun 73%Jan 112%Jan 112%Jul 422%Jul 422%Sep 922%Sep 922%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

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. Thatcher experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.2 months, from June 22 to March 29, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 31, with an average total accumulation of 2.0 inches.

The rainless period of the year lasts for 2.8 months, from March 29 to June 22. The least rain falls around June 1, with an average total accumulation of 0.2 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Sun

The length of the day in Thatcher varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 59 minutes of daylight; the longest day is June 20, with 14 hours, 19 minutes of daylight.

Hours of Daylight and Twilight

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 5:10 AM on June 11, and the latest sunrise is 2 hours, 12 minutes later at 7:22 AM on January 7. The earliest sunset is at 5:12 PM on December 4, and the latest sunset is 2 hours, 19 minutes later at 7:31 PM on June 29.

Daylight saving time (DST) is not observed in Thatcher during 2017.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight in ThatcherJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 115:10 AMJun 115:10 AM7:31 PMJun 297:31 PMJun 29Dec 45:12 PMDec 45:12 PM7:22 AMJan 77:22 AMJan 7daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Thatcher, 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, staying within 5% of 5% throughout.

Humidity Comfort Levels

Humidity Comfort Levels in ThatcherJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Mar 140%Mar 140%Aug 510%Aug 510%humidhumiddrydrymuggymuggycomfortablecomfortable
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Thatcher experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.0 months, from February 1 to July 2, with average wind speeds of more than 7.2 miles per hour. The windiest day of the year is April 22, with an average hourly wind speed of 8.6 miles per hour.

The calmer time of year lasts for 7.0 months, from July 2 to February 1. The calmest day of the year is August 16, with an average hourly wind speed of 5.7 miles per hour.

Average Wind Speed

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Thatcher varies throughout the year.

The wind is most often from the west for 6.7 months, from February 5 to August 27, with a peak percentage of 61% on June 7. The wind is most often from the east for 5.2 months, from August 27 to February 5, with a peak percentage of 48% on January 1.

Wind Direction

Wind Direction in ThatcherEWEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%westeastnorthsouth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Best Time of Year to Visit

To characterize how pleasant the weather is in Thatcher 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 times of year to visit Thatcher for general outdoor tourist activities are from late April to late June and from late August to mid October, with a peak score in the last week of September.

Tourism Score

Tourism Score in Thatcherbest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec02468107.27.21.41.47.17.15.55.5precipitationprecipitationcloudscloudstemperaturetemperaturetourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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 Thatcher for hot-weather activities is from early June to mid September, with a peak score in the last week of June.

Beach/Pool Score

Beach/Pool Score in Thatcherbest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.96.90.10.16.76.7 precipitationprecipitationcloudscloudstemperaturetemperaturebeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

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.

Growing Season

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Thatcher typically lasts for 8.5 months (261 days), from around March 5 to around November 21, rarely starting before January 30 or after April 5, and rarely ending before November 1 or after December 10.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in Thatchergrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 550%Mar 550%Nov 2150%Nov 2190%Apr 590%Apr 590%Nov 190%Nov 110%Jan 3010%Jan 3010%Dec 1010%Dec 10Jul 24100%Jul 24100%very coldcoldcoolcomfortablewarmhotsweltering
The percentage of time spent in various temperature bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Thatcher should appear around January 30, only rarely appearing before January 22 or after February 11.

Growing Degree Days

The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

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 18 to July 6, with an average daily incident shortwave energy per square meter above 7.5 kWh. The brightest day of the year is June 8, with an average of 8.6 kWh.

The darker period of the year lasts for 3.1 months, from November 5 to February 8, with an average daily incident shortwave energy per square meter below 4.3 kWh. The darkest day of the year is December 24, with an average of 3.3 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in ThatcherbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWh10 kWhJun 88.6 kWhJun 88.6 kWhDec 243.3 kWhDec 243.3 kWhApr 187.5 kWhApr 187.5 kWhNov 54.3 kWhNov 54.3 kWhFeb 84.3 kWhFeb 84.3 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Thatcher are 32.849 deg latitude, -109.759 deg longitude, and 2,927 ft elevation.

The topography within 2 miles of Thatcher contains only modest variations in elevation, with a maximum elevation change of 223 feet and an average elevation above sea level of 2,910 feet. Within 10 miles contains only modest variations in elevation (5,243 feet). Within 50 miles also contains extreme variations in elevation (8,415 feet).

The area within 2 miles of Thatcher is covered by cropland (61%) and shrubs (39%), within 10 miles by shrubs (83%) and cropland (13%), and within 50 miles by shrubs (82%) and trees (14%).

Data Sources

This report illustrates the typical weather in Thatcher, 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 Thatcher.

For each station, the records are corrected for the elevation difference between that station and Thatcher 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 Thatcher is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Thatcher and a given station.

The stations contributing to this reconstruction are: Safford Municipal Airport (92%, 12 kilometers, east); Allied Airstrip (3.2%, 130 kilometers, southwest); Sierra Vista Municipal Libby Army Air Field (2.3%, 151 kilometers, south); and Bisbee-Douglas International Airport (2.4%, 156 kilometers, south).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.