Climate for Station: Riyadh Obs. (O.a.p., Riyadh Region, Saudi Arabia
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Station Statistics
10-Year Trend
High: +1.81 °C/decade
Low: +0.99 °C/decade
Rain: +0.12 mm/decade
25-Year Trend
High: +0.35 °C/decade
Low: +0.05 °C/decade
Rain: +0.04 mm/decade
50-Year Trend
High: +0.31 °C/decade
Low: +0.26 °C/decade
Rain: -0.74 mm/decade
All-Time Trend
High: +0.31 °C/decade
Low: +0.26 °C/decade
Rain: -0.74 mm/decade
Percentage Above-Average Days
Last 12 Months: 56.4%
This Year: 83.3%
Precipitation Concentration Index (PCI) ℹ️
Last 12 Months: 41.3
Historical Average: 41.7
Percentile Rank of Last 12 Months ℹ️
High: 66th percentile
Low: 35th percentile
Rain: 58th percentile
Change in Variance ℹ️
High: -3.6%
Low: -5.6%
Intraday: +10.4%
Data Coverage
75.5%
First Year of Data
1972
Station Location
Weather Records
| Max High | Avg High | Min High | Max Avg | Avg Avg | Min Avg | Max Low | Avg Low | Min Low | Max Precipitation | Avg Precipitation | Max Snow | Avg Snow | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record | 49.0 °C | — | 7.3 °C | 43.2 °C | — | 3.2 °C | 37.0 °C | — | -2.2 °C | 778.0 mm | — | — | — |
| January | 33.0 °C | 20.7 °C | 7.3 °C | 24.7 °C | 14.7 °C | 3.2 °C | 18.6 °C | 8.8 °C | -2.2 °C | 778.0 mm | 2.0 mm | — | — |
| February | 34.8 °C | 23.6 °C | 9.5 °C | 29.3 °C | 17.3 °C | 5.0 °C | 20.0 °C | 10.9 °C | -1.3 °C | 778.0 mm | 1.5 mm | — | — |
| March | 38.8 °C | 28.0 °C | 12.9 °C | 33.3 °C | 21.6 °C | 8.3 °C | 25.0 °C | 15.1 °C | 4.2 °C | 63.2 mm | 0.6 mm | — | — |
| April | 42.0 °C | 33.5 °C | 17.5 °C | 34.9 °C | 27.0 °C | 15.1 °C | 29.0 °C | 20.1 °C | 8.9 °C | 59.9 mm | 0.5 mm | — | — |
| May | 49.0 °C | 39.3 °C | 25.8 °C | 40.7 °C | 32.6 °C | 21.5 °C | 32.5 °C | 25.3 °C | 16.0 °C | 778.0 mm | 2.8 mm | — | — |
| June | 47.2 °C | 42.5 °C | 37.0 °C | 43.1 °C | 35.6 °C | 27.0 °C | 35.0 °C | 27.5 °C | 20.0 °C | 778.0 mm | 0.6 mm | — | — |
| July | 48.0 °C | 43.6 °C | 37.0 °C | 43.2 °C | 36.7 °C | 28.5 °C | 37.0 °C | 28.8 °C | 21.0 °C | 778.0 mm | 0.5 mm | — | — |
| August | 48.0 °C | 43.4 °C | 38.2 °C | 42.9 °C | 36.5 °C | 30.6 °C | 36.0 °C | 28.5 °C | 21.0 °C | 2.3 mm | 0.0 mm | — | — |
| September | 45.2 °C | 40.6 °C | 34.2 °C | 42.2 °C | 33.5 °C | 25.9 °C | 33.0 °C | 25.5 °C | 16.1 °C | 1.3 mm | 0.0 mm | — | — |
| October | 43.3 °C | 35.3 °C | 23.8 °C | 34.9 °C | 28.1 °C | 18.2 °C | 28.0 °C | 20.6 °C | 12.0 °C | 778.0 mm | 0.5 mm | — | — |
| November | 36.0 °C | 27.7 °C | 13.0 °C | 32.3 °C | 21.3 °C | 8.1 °C | 24.0 °C | 15.1 °C | 5.0 °C | 778.0 mm | 1.3 mm | — | — |
| December | 31.5 °C | 22.3 °C | 8.0 °C | 24.0 °C | 16.2 °C | 5.5 °C | 20.0 °C | 10.4 °C | 1.0 °C | 778.0 mm | 0.9 mm | — | — |
Plots
Current Year Climate Trends vs Historical
Max Temperature this Year | 1 of 4
Climate 12-Month Moving Averages
Max Temperature 12-Month MA | 1 of 4
Daily Average Temperatures Throughout the Year
Average Max Temperature Throughout Year | 1 of 3
