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Contents
- The climate of Parker
- The best time to visit Parker
- The worst time to visit Parker
- Spring weather in Parker
- Summer weather in Parker
- Autumn weather in Parker
- Winter weather in Parker
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The calm Colorado River, riverside city of Parker in Arizona, and the dramatic mountainous landscape
The climate of Parker
Positioned under the influence of Subtropical desert, Parker, Arizona, follows the BWh Köppen climate classification. The predominate climate stems from its geographical position and the omnipresent desert environment.
Temperature patterns in Parker present a spectrum ranging from moderately cool to extremely hot. The town experiences low temperatures at an average of 47.1°F (8.4°C) in the coldest month and soaring highs that reach an extreme of 104.2°F (40.1°C) in the hottest month. A slim variation in relative humidity can be perceived throughout the year, with the lowest at 15% and the highest at 39%. Rainfall ranges narrowly from 0.04" (1mm) to 0.59" (15mm) per month, the city being particularly dry.
Sunshine is abundant, reflected by the sunshine hours that span from 7 hours to a high of 12.1 hours in a day. The UV Index measuring sunlight intensity oscillates between 3 to 9, denoting a variation from moderate to very high UV radiation. Parker experiences low cloud coverage, ranging from 5% to a modest 19% throughout the year. It's a location characterized by high pressure systems, a condition highlighted by the barometric pressure measurements, averaging between 29.74 in and 30.09 in.
Temperature patterns in Parker present a spectrum ranging from moderately cool to extremely hot. The town experiences low temperatures at an average of 47.1°F (8.4°C) in the coldest month and soaring highs that reach an extreme of 104.2°F (40.1°C) in the hottest month. A slim variation in relative humidity can be perceived throughout the year, with the lowest at 15% and the highest at 39%. Rainfall ranges narrowly from 0.04" (1mm) to 0.59" (15mm) per month, the city being particularly dry.
Sunshine is abundant, reflected by the sunshine hours that span from 7 hours to a high of 12.1 hours in a day. The UV Index measuring sunlight intensity oscillates between 3 to 9, denoting a variation from moderate to very high UV radiation. Parker experiences low cloud coverage, ranging from 5% to a modest 19% throughout the year. It's a location characterized by high pressure systems, a condition highlighted by the barometric pressure measurements, averaging between 29.74 in and 30.09 in.
The best time to visit Parker
The preferred time to visit Parker hinges on the visitor's tolerance for extreme heat. Those comfortable under toasty conditions may find comfort between May to September, when highs range from 90.1°F (32.3°C) to a scorching 104.2°F (40.1°C). This period also sees the highest sunshine hours, reaching as much as 14.4 hours per day, offering ample daylight for outdoor activities.
The worst time to visit Parker
For travelers sensitive to extreme heat or prone to conditions aggravated by high UV radiation, it might be best to abstain from visiting Parker between June and August. This period witnesses blazing hot conditions, with temperatures soaring to a severe 104.2°F (40.1°C) and a UV index that pushes to an extreme 9.
Spring weather in Parker
Spring weather in Parker transits from a pleasurable warmth to looming summer heat. March initiates the season with a high temperature of 75.4°F (24.1°C), which escalates to an intense 90.1°F (32.3°C) by May. The city experiences a modest decrease in relative humidity, falling from 27% in March to 19% in May. Rainfall remains relatively scarce throughout the season.
Summer weather in Parker
Summer in Parker is characterized by extreme heat. Highs in June begin at a torrid 101.7°F (38.7°C) and peak in July and August hitting an oppressive 104.2°F (40.1°C) to 103.6°F (39.8°C) respectively. Relative humidity surges slightly during these months, while rainfall increases, reaching its zenith in July with 0.59" (15mm). Despite the heat, plentiful sunshine prevails, presenting visitors with long, sunlit days for outdoor activities.
Autumn weather in Parker
Autumn registers a gradual, noticeable decrease in temperature in Parker. September marks the transition with a high of 96.8°F (36°C), cooling down to a comfortable 72.9°F (22.7°C) by November. Rainfall too descends gradually during these months, while the relative humidity increases slightly.
Winter weather in Parker
Winter weather in Parker is relatively mild with average high temperatures moving from 67.1°F (19.5°C) in December down to a cooler 63.1°F (17.3°C) in January. The relative humidity percentage rises to 39% in these months, indicating a comparatively moist atmosphere. Rainfall is scanty, fluctuating between 0.35" (9mm) to 0.31" (8mm). Despite being the shortest days of the year, sunshine still lights up the city for a reasonable 7 to 9 hours daily.
Weather in January
January weather in Parker, Arizona signals the middle of winter with cooler temperatures than the scorching summer months. The range of temperatures transition from 63.1°F (17.3°C) to 47.3°F (8.5°C). Dry conditions persist and rain is rare, making crisp winter walks a delightful experience. Weather in January »
Weather in February
The weather in February in Parker, Arizona introduces subtle signs of approaching spring. Warm temperatures are more commonly experienced with a slight increase from the previous month. The cloud cover decreases, paving way for clearer skies and extended hours of sunshine. Weather in February »
Weather in March
March brings further warming signals as spring arrives in Parker, Arizona. The temperature shifts notably from February, with highs reaching up to 75.4°F (24.1°C). This month is characterized by diminishing humidity and cloud cover, leading to plenty of bright, clear days. Weather in March »
Weather in April
April further heralds the arrival of spring, with weather conditions in Parker, Arizona practically calling for outdoor activities. A substantial jump in temperatures can be witnessed from the previous month, nearing 82.8°F (28.2°C) for high temperatures. Weather in April »
Weather in May
May marks the transition from spring to the beginning of an intensely hot summer in Parker, Arizona. An upward temperature trend continues with high peaks around 90.1°F (32.3°C), appealing to visitors who prefer the heat. This month enjoys extended daylight hours, fewer clouds, and lower pressure levels. Weather in May »
Weather in June
The arrival of June heralds the start of a sweltering summer in Parker, Arizona. The weather escalates to scorching temperatures, with the highest measure approximating 101.7°F (38.7°C). Despite the soaring temperatures, the humidity leans towards the lower side ensuring some level of comfort. Weather in June »
Weather in July
July in Parker, Arizona, is characterized by peak summer conditions. It emerges as the hottest month of the year with maximum temperatures soaring up to 104.2°F (40.1°C). Various weather elements such as relatively high humidity, increased wind speed, and longer daylight hours contribute to the overall hot environment. Weather in July »
Weather in August
August presents a modest cooling trend in Parker, Arizona, despite being situated within the summer season. The temperatures gradually descend, peaking around 103.6°F (39.8°C). The amount of sunshine received decreases slightly, with cloud cover showing marginal increase. Weather in August »
Weather in September
September begins the transition from summer to autumn in Parker, Arizona. A noticeable cooling trend is seen as temperatures gradually reduce, peaking at 96.8°F (36°C) for the month. As the month progresses, daylight hours begin to shorten, hinting at the impending arrival of fall. Weather in September »
Weather in October
October welcomes autumn in Parker, Arizona, with temperatures becoming more bearable. The high temperature averages around 84.9°F (29.4°C), marking a significant drop from September. The daylight hours continue to lessen but the visibility remains largely unhampered. Weather in October »
Weather in November
November heralds the beginning of winter in Parker, Arizona, as the temperature descends steadily with averages nearing 72.9°F (22.7°C). The atmosphere gets visibly crisper, with chilly mornings and cooler nights. Fewer daylight hours and a corresponding increase in cloud cover hint at the impending winter. Weather in November »
Weather in December
December, the heart of winter in Parker, Arizona, sees average high temperatures around 61.2°F (16.2°C). Skies tend to be clearer with light winds and lesser cloud cover. Despite the overall dry conditions, the prospect of winter rain cannot be entirely dismissed. Weather in December »
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the most humid month?
The months with the highest humidity are January and December, with an average relative humidity of 39%.
How much does it rain?
In Parker, during the entire year, the rain falls for 39.4 days and collects up to 3.9" (99mm) of precipitation.
What is the driest month?
May and June are months with the least rain when the rain falls for 1.2 days and typically aggregates up to 0.04" (1mm) of rain.
What is the least humid month?
June is the least humid month, with an average relative humidity of 15%.
When are the longest days?
June has the longest days of the year, with an average of 14h and 24min of daylight.
What month has the most sunshine in Parker?
With an average of 12.1h of sunshine, June has the most sunshine of the year.
What time of the year is the hottest?
July, noted for its average high-temperature of 104.2°F (40.1°C) and an average low-temperature of 84.4°F (29.1°C), is considered the warmest month.
What is the rainiest month?
The month with the most rainfall is July, when the rain falls for 7.8 days and typically aggregates up to 0.59" (15mm) of precipitation.
What is the month with the highest UV index?
The month with the highest UV index is July, with an average maximum UV index of 9.
What is the coldest month?
December proves to be the coldest month in Parker, recording an average maximum temperature of 61.2°F (16.2°C) and a minimum temperature of 47.1°F (8.4°C).
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 54min of daylight.
Is there Daylight Saving Time (DST)?
Parker does not utilize Daylight Saving Time (DST). MST timezone is used throughout the entire year.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 7h of sunshine.
What is the month with the lowest UV index?
The month with the lowest UV index is December, with an average maximum UV index of 3.
Average temperature
Parker, AZ
The warmest month (with the highest average high temperature) is July (104.2°F).
The month with the lowest average high temperature is December (61.2°F).
The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is December (47.1°F).
Average pressure
Parker, AZ
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
29.95"Hg - Average pressure in April:
29.86"Hg - Average pressure in May:
29.8"Hg - Average pressure in June:
29.74"Hg
- Average pressure in July:
29.8"Hg - Average pressure in August:
29.79"Hg - Average pressure in September:
29.81"Hg - Average pressure in October:
29.88"Hg - Average pressure in November:
30"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.74"Hg).
Average wind speed
Parker, AZ
- Average wind speed in January:
6mph - Average wind speed in February:
6.5mph - Average wind speed in March:
7.2mph - Average wind speed in April:
8.5mph - Average wind speed in May:
8.4mph - Average wind speed in June:
8.2mph
- Average wind speed in July:
7.8mph - Average wind speed in August:
7.4mph - Average wind speed in September:
6.5mph - Average wind speed in October:
6.6mph - Average wind speed in November:
5.8mph - Average wind speed in December:
6mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).
Average humidity
Parker, AZ
The months with the highest relative humidity are January and December (39%).
The month with the lowest relative humidity is June (15%).
Average rainfall
Parker, AZ
- Average rainfall in January:
0.31" - Average rainfall in February:
0.35" - Average rainfall in March:
0.35" - Average rainfall in April:
0.12" - Average rainfall in May:
0.04" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.55" - Average rainfall in September:
0.43" - Average rainfall in October:
0.39" - Average rainfall in November:
0.35" - Average rainfall in December:
0.35"
The wettest month (with the highest rainfall) is July (0.59").
The driest months (with the least rainfall) are May and June (0.04").
Average rainfall days
Parker, AZ
- Average rainfall days in January:
2.3 days - Average rainfall days in February:
2.7 days - Average rainfall days in March:
2.8 days - Average rainfall days in April:
2.6 days - Average rainfall days in May:
1.2 days - Average rainfall days in June:
1.3 days
- Average rainfall days in July:
7.8 days - Average rainfall days in August:
6 days - Average rainfall days in September:
4.8 days - Average rainfall days in October:
2.8 days - Average rainfall days in November:
1.5 days - Average rainfall days in December:
3.6 days
The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is May (1.2 days).
Average daylight / Average sunshine
Parker, AZ
- Average daylight in January:
10h and 1min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
7h and 4min - Average sunshine in February:
9h and 2min - Average sunshine in March:
9h and 2min - Average sunshine in April:
10h and 2min - Average sunshine in May:
11h and 5min - Average sunshine in June:
12h and 1min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 1min - Average sunshine in September:
9h and 5min - Average sunshine in October:
8h and 4min - Average sunshine in November:
7h and 2min - Average sunshine in December:
7h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days
Parker, AZ
- Average sunshine days in January:
28.2 days - Average sunshine days in February:
25.3 days - Average sunshine days in March:
28.5 days - Average sunshine days in April:
27.6 days - Average sunshine days in May:
29.3 days - Average sunshine days in June:
28.2 days
- Average sunshine days in July:
20.2 days - Average sunshine days in August:
20.8 days - Average sunshine days in September:
23 days - Average sunshine days in October:
26.8 days - Average sunshine days in November:
28.2 days - Average sunshine days in December:
26.8 days
The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (20.2 days).
Average UV index
Parker, AZ
The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Parker, AZ
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility
Parker, AZ
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Parker, Arizona, USA
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