January 2018 summary

Average high: 33.1 (+1.4)
Average low:  16.9 (-0.7)
Mean:            25.0 (+0.3)

Precipitation: 3.11” (+0.70”, 129%
Precipitation days: 13

Snowfall: 32.9” (+4.7”, 117%)
Snow Days: 12

Max Snow Depth: 12” on the 14th
Days snow lying: 23

Highest: 60 on the 11th and 12th
Lowest: -6 on the 7th
Low Max: 4 on the 6th
High Min: 44 on the 11th

Overall, above average, wet and snowy month. Very cold beginning, warm finish. Snowiest January since 2010, warmest January temp since 2013, coldest high since 2004, wettest January since 2012.

January 2018 Trondheim Airport

Mean: -1.2°C (+0.6°C using 1981-2010, ca average 1986-2015, +2°C using 1961-90)
Avg high: 2°C
Avg low: -4.7°C
Abs high: 7.1°C
Abs low: -14.9°C
Precip: 19.4 mm (31 %)
Precip days (>= 1 mm): 5
Sun hrs: 49
Max snowdepth: 17 cm

Trondheim sunniest in Norway in Jan.

Longyearbyen mean -5.5°C, +9.8°C using 1961-90.
Inland Troms: Bardufoss mean -13.5°C  (-3.1°C compared to 1961-90), a really cold month there.

never bothered to post my December. An extremely cold start, one of the coldest week [or 2 week long] stretches on record, followed by a relatively mild weather off and on the rest of the month. Still not as much warmth as last January.



slightly wetter than average with 3.73 inches (94.7 mm) of rain, unimpressive snowfall totals with 8.0 inches (20 cm) of snow. probably has a bigger range than most winter months, saw something saying DC had its higher range in a month measured by standard deviation since 1942. Deepest snow depth was half a foot (15 cm). As severe cold outbreaks often do, the cold on the 7th was accompanied by winds, so 4°F (-16°C) and 20 mph winds in the evening.

Oh, should add the monthly mean: 32.5°F/ 10.7°F (0.3°C /-10.9°C). -1.5° (-0.8°C) below average

And the second coldest temperature of the month was 3.7°C ! Daily lows were extremely stable hovering between 4~8°C most of the time.

Cölbe (Marburg):

Avg High: 6.9 °C
Mean: 4.4 °C
Avg Low: 1.8 °C

Rec High: 11.2 °C
Rec Low: -4.4 °C

Precip: 112.9 mm
Sun: 17 h (from Dillenburg)


Frankfurt Airport:

Avg High: 8.4 °C
Mean: 6.0 °C
Avg Low: 3.5 °C

Rec High: 12.2 °C
Rec Low: -2.7 °C

Precip: 71.5 mm
Sun: 32.2 h

Difference with the 1981-2010 averages:

Average high: +0.9°C
Daily mean: +0.7°C
Average low: +0.7°C

Very nice temps but not nearly enough rain. Of those 6 rainy days 5 were during the first week of the month. Still no drought alert, though.

London Heathrow

A few days of missing data, so will need to wait for the Met Office to add to their historic data page.

Milder and cloudier than average, with close to average rainfall.
www.meteociel.fr/climatologie/villes.php?code=3772&mois=1&annee=2018

A few more places:

Oslo (94 m):
Mean: -1.7C (+2.6C compared to 61-90)
Avg high: 0.3C
Avg low: -3.8C
Abs high: 5.6C
Abs low: -11.7C
Precip: 86.3 mm (176 %)
Precip days (>1 mm): 17
Max snow depth: 41 cm
Mean snow depth: 24 cm
Sun hrs: 23

Stavanger (72 m):
Mean: 2.7C (+1.5C compared to 61-90)
Avg high: 4.6C
Avg low: 0.7C
Abs high: 8C
Abs low: -3.6C
Precip: 134 mm (146 %)
Precip days (>1 mm): 16
Sun hrs: No data, closest is Bergen which recorded 27 sunhrs

Hasvik (71 N):
Mean: -1.8C (+1.1C compared to 61-90)
Avg high: 0.3C
Avg low: -4.3C
Abs high: 6.5C
Abs low: -10.1C
Precip: 42.3 mm (48 %)
Precip days (>1 mm): 10
Max snow depth: 42 cm
Mean snow depth: 26 cm
Sun hrs: No data, Tromsø recorded 6.5 hrs in Jan

Hasvik and Oslo were so similar in temps and snow depth!

On the south coast, Lyngør had mean of 1.4C (+2.2C compared to 61-90)
Tromsø (20 m) had mean -3.4C and avg high -1.3C
Røros mean -9.8C (+1.4C compared to 61-90).

Sunniest except for Trondheim's 49 sunhrs were Landvik on the south coast with 45 sunhrs.

Norrköping had a relatively dull start to the year, although much of that precipitation will still have been snowfall, but here saw much more snowfall, a drop to -15°C but overall very similar temps.