May weather in Oslo, MN
The average temperature in Oslo in May is 54.8°F (42.9°F–66.7°F). Average precipitation: inches.
May is a spring month in Oslo, and is warmer than the annual average of 39.1°F. Daily temperatures swing about 23.8°F between overnight low and afternoon high. Daylight averages about 14h 59m. For travel, May is a comfortable month to visit.
Avg High
66.7°F
Avg Low
42.9°F
Precipitation
in
Daylight
14h 59m
May records in Oslo
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 80.1°F (2015) | 27.0°F (2017) | 0.33 in (2018) |
| May 2 | 81.0°F (2021) | 27.0°F (2022) | 0.11 in (2025) |
| May 3 | 84.9°F (2015) | 30.9°F (2022) | 0.60 in (2024) |
| May 4 | 78.1°F (2023) | 26.1°F (2021) | 0.06 in (2024) |
| May 5 | 91.9°F (2016) | 28.9°F (2019) | 0.24 in (2020) |
| May 6 | 79.0°F (2015) | 25.0°F (2019) | 0.00 in (2015) |
| May 7 | 81.0°F (2018) | 23.0°F (2019) | 0.17 in (2015) |
| May 8 | 87.1°F (2018) | 21.9°F (2020) | 0.59 in (2024) |
| May 9 | 78.1°F (2016) | 28.0°F (2015) | 0.49 in (2018) |
| May 10 | 73.0°F (2023) | 28.0°F (2019) | 0.60 in (2022) |
| May 11 | 80.1°F (2023) | 21.0°F (2020) | 0.00 in (2016) |
| May 12 | 84.0°F (2023) | 21.0°F (2020) | 1.61 in (2022) |
| May 13 | 84.0°F (2023) | 26.1°F (2016) | 1.69 in (2022) |
| May 14 | 82.9°F (2024) | 21.9°F (2016) | 0.37 in (2020) |
| May 15 | 79.0°F (2023) | 30.0°F (2016) | 0.32 in (2015) |
| May 16 | 84.0°F (2018) | 39.9°F (2022) | 1.00 in (2025) |
| May 17 | 82.9°F (2018) | 30.9°F (2019) | 0.02 in (2017) |
| May 18 | 84.9°F (2021) | 12.0°F (2016) | 0.60 in (2024) |
| May 19 | 80.1°F (2016) | 28.0°F (2015) | 0.04 in (2021) |
| May 20 | 86.0°F (2021) | 35.1°F (2015) | 1.21 in (2021) |
| May 21 | 82.0°F (2016) | 35.1°F (2018) | 0.61 in (2021) |
| May 22 | 84.9°F (2023) | 37.9°F (2017) | 0.84 in (2016) |
| May 23 | 86.0°F (2018) | 42.1°F (2023) | 0.21 in (2020) |
| May 24 | 89.1°F (2018) | 39.9°F (2017) | 0.67 in (2024) |
| May 25 | 91.9°F (2018) | 37.0°F (2024) | 1.09 in (2016) |
| May 26 | 89.1°F (2018) | 36.0°F (2021) | 0.05 in (2024) |
| May 27 | 89.1°F (2023) | 37.0°F (2021) | 0.10 in (2020) |
| May 28 | 88.0°F (2018) | 37.0°F (2024) | 0.16 in (2015) |
| May 29 | 84.0°F (2022) | 36.0°F (2020) | 0.47 in (2015) |
| May 30 | 91.9°F (2018) | 30.9°F (2015) | 1.04 in (2016) |
| May 31 | 91.0°F (2019) | 39.0°F (2015) | 2.29 in (2022) |