Vs > Portland, Maine
 | Niamey vs Portland, Maine Climate & Distance Between |  |
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- The distance between Niamey, Niger and Portland, Maine, Usa is approximately 7,574 km or 4,707 mi.
- To reach Niamey in this distance one would set out from Portland, Maine bearing 92.1° or E
 and follow the great circles arc to approach Niamey bearing 132° or SE .
- Niamey has a subtropical hot steppe climate (BSh) whereas Portland, Maine has a warm summer continental/ hemiboreal climate with no dry season (Dfb).
- Niamey is in or near the tropical very dry forest biome whereas Portland, Maine is in or near the cool temperate wet forest biome.
- The average annual temperature is 21.9 °C (39.4°F) warmer.
- Average monthly temperatures vary by 16.8 °C (30.2°F) less in Niamey. The continentality subtype is barely hyperoceanic as opposed to subcontinental.
- Total annual precipitation averages 585.5 mm (23.1 in) less which is equivalent to 585.5 l/m² (14.37 US gal/ft²) or 5,855,000 l/ha (625,938 US gal/ac) less. About 1/2 as much.
- There are 490 more hours of sunlight per year in Niamey. In whichever way circa 1h 21' more per day or about 1 1/5 as many.
- The altitude of the sun at midday is overall 26° higher in Niamey than in Portland, Maine.
- Relative humidity levels are 28.5% lower.
- The mean dew point temperature is 7.9°C (14.2°F) higher.
Climate Comparison Table
The table shows values for Niamey relative to Portland, Maine. You can also view this comparison the other way around from the perspective of Portland, Maine vs Niamey.
| | |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
Annual |
 | Average Max Temperature °C ( °F) |
+33 (+60) |
+35 (+63) |
+34 (+61) |
+30 (+53) |
+23 (+41) |
+15 (+26) |
+8 (+14) |
+8 (+14) |
+14 (+25) |
+23 (+41) |
+28 (+50) |
+32 (+57) |
|
+24 (+42) |
 | Average Temperature °C ( °F) |
+31 (+55) |
+32 (+58) |
+30 (+55) |
+28 (+50) |
+22 (+40) |
+15 (+26) |
+9 (+16) |
+8 (+15) |
+14 (+25) |
+22 (+39) |
+24 (+44) |
+28 (+51) |
|
+22 (+39) |
 | Average Min Temperature °C ( °F) |
+28 (+50) |
+29 (+53) |
+27 (+49) |
+25 (+46) |
+21 (+39) |
+15 (+26) |
+10 (+17) |
+9 (+17) |
+14 (+26) |
+21 (+37) |
+20 (+37) |
+25 (+44) |
|
+20 (+37) |
 | Average Precipitation mm (in) |
-90 (-4) |
-85 (-3) |
-89 (-4) |
-98 (-4) |
-57 (-2) |
-19 (-1) |
+76 (+3) |
+98 (+4) |
+14 (+1) |
-89 (-4) |
-131 (-5) |
-116 (-5) |
|
-586 (-23) |
 | Number of Precipitation Days (% chance of precip. on a day ) |
-12 ( -39) |
-11 ( -39) |
-11.5 ( -37) |
-11 ( -37) |
-9 ( -29) |
-6 ( -20) |
-1 ( -3) |
+3 (+10) |
-3 ( -10) |
-7 ( -23) |
-11 ( -37) |
-11 ( -35) |
|
-90.5 ( -25) |
 | Average Sunlight Hours/ Day |
+4h 21' |
+3h 32' |
+2h 01' |
+1h 20' |
-0h 09' |
-1h 12' |
-2h 29' |
-2h 50' |
-0h 14' |
+2h 40' |
+4h 58' |
+4h 17' |
|
+1h 21' |
 | Average Daylight Hours & Minutes/ Day |
+2h 08' |
+1h 19' |
+0h 14' |
-0h 54' |
-1h 53' |
-2h 24' |
-2h 10' |
-1h 19' |
-0h 12' |
+0h 56' |
+1h 55' |
+2h 24' |
|
0h 00' |
 | Sun altitude at solar noon on the 21st day (°) |
+30.1 |
+29.9 |
+30 |
+30 |
+16.6 |
+10.2 |
+16.2 |
+30.1 |
+30.1 |
+30.1 |
+30.1 |
+30.1 |
| +26 |
 | Relative Humidity (%) |
-52 |
-49 |
-49 |
-40 |
-23 |
-17 |
-4 |
+8 |
-1 |
-20 |
-47 |
-48 |
|
-28.5 |
 | Average Dew Point Temperature °C & (°F) |
+5.2 (+9) |
+6.5 (+12) |
+3 (+5) |
+7.4 (+13) |
+12.6 (+23) |
+8.5 (+15) |
+7 (+13) |
+9.8 (+18) |
+12.9 (+23) |
+13.8 (+25) |
+2.8 (+5) |
+4.9 (+9) |
|
+7.9 (+14) |
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Niamey vs Portland, Maine Discussion
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