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Arusha, Tanzania
Average High Temperature | Average Low Temperature | Highest Recorded Temperature | Lowest Recorded Temperature | Mean No. of Days Below 32°F/0°C | Average Precipitation | Average Relative Humidity |
| Average High Temperature |
| | Year | Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. |
| °F | 77 | 84 | 84 | 81 | 77 | 72 | 70 | 69 | 72 | 76 | 80 | 81 | 81 | | °C | 25 | 28 | 28 | 27 | 25 | 22 | 21 | 20 | 22 | 24 | 26 | 27 | 27 |
| Years Charted: 16 | Source: International Station Meteorological Climate Summary, Version 4.0 |
| Average Low Temperature |
| | Year | Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. |
| °F | 51 | 50 | 51 | 53 | 57 | 52 | 48 | 49 | 48 | 47 | 51 | 51 | 50 | | °C | 10 | 10 | 10 | 11 | 13 | 11 | 8 | 9 | 8 | 8 | 10 | 10 | 10 |
| Years Charted: 16 | Source: International Station Meteorological Climate Summary, Version 4.0 |
| Highest Recorded Temperature |
| | Year | Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. |
| °F | 102 | 97 | 99 | 96 | 92 | 86 | 82 | 81 | 84 | 91 | 94 | 102 | 95 | | °C | 38 | 36 | 37 | 35 | 33 | 30 | 27 | 27 | 28 | 32 | 34 | 38 | 35 |
| Years Charted: 16 | Source: International Station Meteorological Climate Summary, Version 4.0 |
| Lowest Recorded Temperature |
| | Year | Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. |
| °F | 45 | 50 | 48 | 48 | 52 | 51 | 46 | 45 | 46 | 47 | 49 | 51 | 50 | | °C | 7 | 10 | 8 | 8 | 11 | 10 | 7 | 7 | 7 | 8 | 9 | 10 | 10 |
| Years Charted: 16 | Source: International Station Meteorological Climate Summary, Version 4.0 |
| Mean No. of Days Below 32°F/0°C |
| | Total | Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. |
| Days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Years Charted: 16 | Source: International Station Meteorological Climate Summary, Version 4.0 |
| Average Precipitation |
| | Year | Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. |
| in. | 48.6 | 2.29 | 3.25 | 6.99 | 14.52 | 8.33 | 1.30 | 0.56 | 0.77 | 0.79 | 1.41 | 4.39 | 4.01 | | mm | 1234 | 58 | 82 | 177 | 368 | 211 | 33 | 14 | 19 | 20 | 35 | 111 | 101 |
| Years Charted: 32 | Source: International Station Meteorological Climate Summary, Version 4.0 |
| Average Relative Humidity |
| | Total | Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. |
| % | 82 | 84 | 95 | 95 | 94 | 98 | 91 |
| Years Charted: 11 | Source: International Station Meteorological Climate Summary, Version 4.0 |
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