[XLL] Allentown [2008-]
or Select from map

The following tables present IEM computed monthly data summaries based on daily data provided by or computed for the IEM. A download interface exists for the daily summary information. The climatology is provided by the nearest NCEI climate station (USW00014737) within the current 1991-2020 dataset.

To load shown data into Microsoft Excel, highlight the table information with your mouse and then copy/paste into Excel.

Precipitation Totals [inch]

YearJanFebMarAprMayJunJulAugSepOctNovDec
2008MMMMMMMMMMM0.03
20090.330.220.891.673.314.882.424.772.132.440.713.62
20101.291.113.532.472.142.502.891.123.753.501.591.17
20111.651.943.364.392.902.312.488.479.913.702.543.49
20121.660.941.571.832.742.420.312.744.115.540.762.80
20132.780.861.762.082.216.463.877.591.361.941.572.61
20142.022.441.713.643.714.464.661.601.032.042.152.05
20151.650.772.881.330.04MMM4.032.630.962.96
20161.433.910.722.124.792.055.975.587.342.385.473.82
20174.421.762.492.513.552.822.524.462.083.851.231.14
20182.654.542.253.073.532.506.2711.805.673.699.074.81
20193.59M2.114.358.605.199.543.981.427.722.512.85
20202.622.763.575.132.310.400.180.242.192.393.843.08
20211.452.472.260.973.652.803.625.397.383.791.040.71
20221.702.342.674.984.722.892.061.673.894.722.422.82
2023M0.822.143.950.202.775.612.916.111.662.177.68
20244.361.604.454.062.981.763.486.360.91M1.662.66
20250.18M2.822.218.732.803.190.15MMMM
NCEI Climatology3.302.883.633.673.654.405.304.564.844.143.243.86

Average Wind Speed [MPH]

YearJanFebMarAprMayJunJulAugSepOctNovDec
2008MMMMMMM3.84.54.45.1M
20095.06.56.57.65.14.33.83.14.24.95.66.4
20106.86.87.55.83.55.04.14.25.25.46.28.3
20116.07.58.07.86.15.54.44.13.94.94.74.7
20126.46.36.36.94.44.94.53.23.94.94.95.5
20135.46.57.87.15.45.44.93.64.14.76.54.7
20145.95.27.17.15.04.94.83.74.15.95.55.9
20156.46.45.87.35.35.63.94.24.25.75.04.8
20166.36.77.16.15.05.24.44.04.85.05.46.0
20175.96.48.06.76.15.44.23.53.85.35.05.2
20186.44.88.07.14.85.54.74.24.35.16.35.0
20195.90.05.36.85.45.33.23.53.95.15.55.0
20205.95.66.27.96.75.04.14.44.04.55.36.0
20216.46.17.26.95.94.94.24.05.45.24.84.8
20226.06.47.27.35.65.05.44.94.84.86.06.3
2023M6.57.56.85.25.44.14.54.64.24.84.4
20246.05.17.26.74.85.64.14.54.34.26.35.3
20256.80.37.57.56.14.94.23.5MMMM
NCEI ClimatologyMMMMMMMMMMMM

Average Daily High Temperature [F]

YearJanFebMarAprMayJunJulAugSepOctNovDec
2008MMMMMMM79.5775.4462.4852.4341.53
200932.3542.3551.1463.9271.7776.7180.9582.7773.0161.2456.5039.51
201037.9737.2456.6668.1274.5683.1188.4784.3579.4964.7253.2036.92
201133.1642.0349.6762.9873.8181.2088.7381.4772.9861.7956.3046.63
201241.1744.5459.2961.6474.0478.2687.8782.3473.9461.5547.7243.55
201338.9736.6344.7760.6870.9680.4885.3079.6174.3065.6850.0040.83
201432.5234.8343.5060.9873.9580.6682.9879.8076.4064.9848.2042.80
201533.9730.0142.7462.5478.9778.9283.9784.0880.1863.8858.0453.31
201638.6242.9257.4960.3870.0981.6887.3486.2979.7665.6256.0041.52
201740.8349.4246.2366.9868.8780.9083.9779.8577.0669.6752.6438.21
201837.8645.8244.4857.0277.1780.2585.7183.6878.6562.5446.8243.38
201936.8842.4451.4465.3671.8373.4087.1483.6878.5665.7448.3841.35
202042.5745.2854.8857.5068.7081.9287.8683.3974.9063.4758.1042.39
202138.4536.3153.6062.7271.7281.5083.7984.0876.2268.2351.0847.27
202234.8544.9952.5556.6373.1779.1686.5886.6475.3862.5455.4040.75
2023M48.6850.2965.7271.7277.7885.1980.8975.3866.9552.4046.46
202439.7844.9754.0163.0272.8284.6886.5281.8875.1469.5756.6640.44
202532.6048.2057.3763.5670.2680.9086.9382.82MMMM
NCEI Climatology38.4141.7350.8063.4073.4981.9186.4084.3077.3965.5053.7943.10

Average Daily Low Temperature [F]

YearJanFebMarAprMayJunJulAugSepOctNovDec
2008MMMMMMM59.7757.0841.5240.9128.62
200919.4025.8332.9943.1852.5860.2662.4666.0155.5444.5240.0427.55
201023.9325.3737.8143.7654.8264.2167.5865.7457.9445.3935.1823.79
201119.6223.9531.8144.2154.5961.5867.8363.3558.9444.2536.9830.55
201226.2529.3939.7239.8655.3458.8272.2563.1255.4646.9831.5232.12
201326.0825.1930.7841.1250.8162.0669.2862.8953.3046.8133.9827.01
201416.6120.1726.9540.2853.7661.1664.3461.2755.8248.0333.1432.00
201520.6213.4227.9941.6655.0562.1265.9762.7759.4843.9039.6839.49
201623.0027.4137.8641.1251.6860.8067.4867.0758.7046.2836.9829.56
201729.5031.1630.7246.7651.0560.9266.8461.9057.5649.3633.3826.54
201821.0830.2031.2538.1256.1561.0166.0868.5865.3047.3334.4031.42
201924.2217.2433.0845.8654.4159.5468.7864.8157.6848.4931.8229.39
202028.8630.5137.0539.6249.6560.6268.7066.1455.8846.5738.1828.57
202127.2426.2834.6141.7849.7161.7665.4566.6658.4651.8632.6034.03
202220.4525.0634.0340.5353.6659.1867.5966.4956.4242.8037.8226.97
2023M29.7233.5745.0247.2757.2667.1363.2457.7447.5633.5034.21
202427.9428.9636.7043.8255.2862.1867.7763.4756.8444.1438.7227.28
202520.2742.8035.3743.1652.3862.7268.9360.66MMMM
NCEI Climatology21.8123.3130.5140.3050.5959.9064.7062.8055.2043.8034.1026.79

Average Daily Temperature (high+low)/2 [F]

YearJanFebMarAprMayJunJulAugSepOctNovDec
2008MMMMMMM69.6766.2652.0046.6735.08
200925.8734.0942.0753.5562.1868.4971.7174.3964.2752.8848.2733.53
201030.9531.3147.2355.9464.6973.6678.0375.0468.7155.0544.1930.35
201126.3932.9940.7453.6064.2071.3978.2872.4165.9653.0246.6438.59
201233.7136.9749.5150.7564.6968.5480.0672.7364.7054.2739.6237.84
201332.5230.9137.7850.9060.8971.2777.2971.2563.8056.2441.9933.92
201424.5727.5035.2250.6363.8570.9173.6670.5366.1156.5040.6737.40
201527.3021.7135.3752.1067.0170.5274.9773.4369.8353.8948.8646.40
201630.8135.1747.6850.7560.8971.2477.4176.6869.2355.9546.4935.54
201735.1640.2938.4756.8759.9670.9175.4070.8767.3159.5143.0132.38
201829.4738.0137.8647.5766.6670.6375.9076.1371.9754.9340.6137.40
201930.5529.8442.2655.6163.1266.4777.9674.2468.1257.1140.1035.37
202035.7237.9045.9648.5659.1771.2778.2874.7665.3955.0248.1435.48
202132.8431.2944.1152.2560.7171.6374.6275.3767.3460.0541.8440.65
202227.6535.0243.2948.5863.4169.1777.0976.5665.9052.6746.6133.86
2023M39.2041.9355.3759.4967.5276.1672.0666.5657.2642.9540.33
202433.8636.9745.3553.4264.0573.4377.1572.6765.9956.8547.6933.86
202526.4345.5046.3753.3661.3271.8177.9371.74MMMM
NCEI Climatology30.1132.5240.6551.8562.0470.9175.5573.5566.3054.6543.9534.95

Average Relative Humidity [%]

This value is computed via a simple average of available observations weighted by the duration between observations.

YearJanFebMarAprMayJunJulAugSepOctNovDec
2008MMMMMMM56.0%64.7%62.9%66.2%M
200964.1%59.3%56.6%55.4%66.2%73.7%67.6%72.9%72.3%72.1%68.3%65.3%
201062.4%64.0%58.2%53.1%62.9%63.1%69.8%74.3%72.0%76.4%76.1%72.0%
201174.2%68.6%67.7%76.6%79.3%74.0%70.6%80.4%80.1%71.1%69.5%70.2%
201263.7%61.7%59.5%51.5%70.1%62.7%54.7%68.8%71.0%74.6%66.7%75.8%
201367.8%66.2%59.5%54.5%63.4%66.0%68.8%71.4%67.6%68.7%58.1%67.5%
201457.5%57.8%47.0%52.3%68.6%66.0%68.3%69.1%71.6%69.2%63.9%73.2%
201564.6%59.8%61.1%56.0%58.7%72.2%68.7%65.3%69.6%69.2%68.1%78.5%
201663.4%65.1%57.0%54.5%68.1%60.6%67.0%71.8%68.4%72.8%65.9%68.0%
201773.3%61.3%59.4%62.0%68.9%65.7%74.2%76.7%76.2%73.4%71.0%67.6%
201867.3%76.9%63.7%61.8%71.0%67.7%70.5%81.4%86.7%78.1%75.0%78.8%
201966.3%77.9%58.6%62.8%76.6%71.0%74.2%50.6%73.3%76.4%68.1%78.8%
202072.1%69.3%67.1%65.6%65.2%68.4%73.6%78.1%73.6%77.8%68.2%72.4%
202168.2%68.3%56.1%57.0%60.3%70.6%73.5%75.3%74.8%79.0%70.2%69.9%
202264.8%64.5%60.7%60.0%68.8%65.6%67.7%66.6%72.9%74.5%68.3%71.4%
2023M63.3%62.1%62.1%55.9%66.8%75.2%72.8%79.6%74.9%66.6%77.1%
202473.4%65.1%64.6%65.0%74.2%62.6%70.9%74.9%75.1%62.5%65.5%72.0%
202561.2%46.5%57.6%59.1%74.9%75.2%75.9%67.5%MMMM

Monthly Plots

Select month and year:

Monthly Plot
Monthly Plot