City Summary Archive
InJuneau , the average temperature was 44.7°F, a substantial -3.9°F below the long term mean. The maximum temperatures for the month (59°F) occurred on the 24th this value is lower than the maximum temperature observed in April and it was the 8thcoldest May in terms of the daily maximum temperature ever observed in Juneau. One has to go back to 1955 to find a May with a lower average maximum temperature. The minimum temperature (35°F) was recorded on the 15thof May. However, no new daily extremes were observed.
Precipitation totaled 5.73", 77% above the normal of 3.24". It rained on 29 days of the month, and May 2012 was the 4thwettest May on record. Trace snowfall occurred on three days. The trace snowfall on the 15thwas a 'record' in that snowfall had not been recorded on this day before. The mean monthly wind speed was 9.9 mph, with a maximum gust of 44 mph occurring on 20th, blowing from southeast. Furthermore, mean cloudiness was high with 90%.
Ketchikan's average temperature of 46.1°F in May was 2.5°F below the long-term mean. While being below normal, the temperature trend was close to the expected values for most of the month. The highest temperature of the month measured 64°F, which occurred on the 24thof May, while the low temperature of 36°F occurred on the 8th, 9thand 13thof the month.
Monthly precipitation was high with 19.25", more than doubling the long term mean of 8.20". Remarkably, 4.73" of rain fell on 6thof May, surpassing by a large amount the old record for this day of 2.40", set in 1959. This total received within a single day surpasses the long-termannual total for Barrow. On the following day, 4.26" of rain were reported, again smashing the previous record for this day of 2.60", which was set in 1973.
Barrow reported an average temperature in May of 21.6°F, 0.5°F above normal. The month was fairly close to the expected values, with the exception of a cold spell around the 7thof the month. The trend shows a strong seasonal warming during this month. On the 17th, the maximum temperature of 36°F was reported, while the lowest temperature of -11°F was observed on the 6thof May. No new temperature records were observed during the month.
Precipitation in Barrow totaled 0.50" water equivalent, far above the long-term mean of 0.18". Some snowfall was observed on 22 days, for a total amount of 5.5". The mean monthly wind speed was 10.2 mph and a gust of 31 mph occurred on the 11th, blowing from an easterly direction.
Nome reported a mean monthly temperature in May of 33.1°F, considerably below the normal of 36.8°F. This might have been caused by the substantial amount of sea ice in the Bering Sea, which went out later than normal. The warmest monthly temperature was 63°F, observed on the 18thof May. This represents a new daily record, surpassing the old record of 62°F set in 1980. The coldest temperature occurred on the 4thwith 5°F.
Precipitation totaled 0.88", very close to the normal value for May of 0.86". However the fact that nearly all the precipitation (0.84") occurred on one day, the 16thMay was remarkable. This set a new record high for this specific day, by surpassing the old record of 0.40" set in 1990 by more than the factor of two. Furthermore, it represents the highest amount of rain ever observed on any one day in May in Nome, where the record stretches back to 1907. The old time previous daily May record had been set on 28 May 1996 at 0.76". The average wind speed for the month was light with 5.8 mph, and the highest gust observed was 28 mph on the 16th, blowing from a southeasterly direction.
King Salmon reported an average temperature of 41.1°F, 3.1°F below normal. The high temperature was 62°F on 23rdof May, while the low temperature of 22°F occurred on the 13th. The minimum of the 13thtied the old record low set in 1965.
The precipitation total was measured as 1.62", 30% above the normal of 1.25". The snowfall on the 4thof 1.8" surpassed the old record for this day of 1.0", set in 1971. The rainfall on the 10thMay of 0.33" set also a new record by topping the old record from 1991 of 0.32". Average wind speed was 9.3 mph and the highest gust was recorded at 38 mph on both the 18thand 28th, blowing from an easterly direction.
King Salmon reported an average temperature of 35.4°F, somewhat (1.7°F) above normal for April. The high temperature was 61°F on 27th, while the low temperature of 9°F occurred on the 6th. The maximum on the 27thwas also new record high for this date, surpassing the old maximum of 58°F set in 2005.
The precipitation total was measured as 0.56", 42% below the normal of 0.97". The snowfall of 3.2" on the 5thsurpassed the old record for this day of 2.8", set in 1990. However, despite this, the total observed snowfall for the month fell 0.5" below the normal of 3.9". Average wind speed was 8.9 mph and the highest gust was recorded at 56 mph on the 8th, blowing from a southerly direction.
Kodiak's average temperature of 39.5°F in April was 1.9°F above the long term mean. The highest temperature measured was 59°F on the 25th, while the low temperature of 28°F occurred on the 3rd, 4thand 7th. The maximum temperature of the 25threpresents a new maximum for this day, surpassing the old maximum of 57°F set in 1990. Furthermore, the temperature of 56°F on the 20this also a new daily maximum. The old record of 55°F was originally set way back in 1936.
Monthly precipitation was measured at 3.99", 69% of the expected amount of 5.81". The monthly average wind speed was calculated as 11.0 mph, and on the 14tha gust of 41 mph was recorded, blowing from a northeasterly direction.
In Big Delta the mean April temperature was 37.7°F, a substantial 5.5°F above the long term mean. The highest monthly temperature of 57°F was observed on the 17th, while the minimum temperature (-4°F) occurred on the 4th. The temperature of 52°F of the 13thmatched the old record high for this day set in 1978 and 1943, while two days later the temperature of 56°F established a new maximum, surpassing the values from 1970 and 1965 by 1°F.
Precipitation in April was reported as 0.11" water-equivalent, slightly less than half of the expected amount of 0.23".
Anchorage recorded an average temperature of 38.8°F, 2.0°F above the normal of 36.8°F. This was a pleasant change from March, for which monthly the mean temperature was substantially below normal. The maximum temperature of the month occurred on the 25thand 27th, both with 58°F, while a minimum temperature of 21°F was observed on the 3rd. For the whole month the temperature followed the expected trend fairly closely.
Precipitation was reported at 0.50" water-equivalent, which is slightly above the normal of 0.47". The average cloudiness was 60% and the mean monthly wind speed was calculated at 5.1 mph. Peak wind speeds were missing for about half of the month, but on the 14tha gust of 63 mph was reported, blowing from a southeasterly direction.