Steven Johnston
Chairman and Chief Executive Officer at Cincinnati Financial
Thank you, Dennis. Good morning and thank you all for joining us today to hear more about our third quarter results. In addition to market volatility affecting the valuation of our investment portfolio, elevated inflation and natural catastrophe events affecting the industry also continued to pressure our property casualty insurance results. We remain well positioned to improve performance through ongoing focus on successfully executing profitable growth strategies for our insurance operations similar to how we have managed past challenges. Our financial strength provides us the ability to maintain a long-term view, keeping a steady approach that can benefit all stakeholders.
We reported a net loss of $418 million for the quarter due to the recognition of a reduction in the fair value of securities held in our equity portfolio. Non-GAAP operating income of $114 million for the third quarter of 2022 was down $95 million from a year ago, including catastrophe losses that were $19 million higher on an after-tax basis. Our 103.9% third quarter property casualty combined ratio was 11.3 percentage points higher than the 92.6% for the third quarter of last year.
Inflationary pressures led to higher estimated ultimate losses in rising loss ratios on a current accident year basis. While we experienced another quarter of favorable development on prior accident years, it was less favorable than a year ago. We continue to respond with underwriting selection and pricing actions in addition to prudent reserving for estimated ultimate losses. In addition to various premium rate increase filings with the state, underwriters have increased expectations to add -- address current inflationary trends in areas such as risk selection criteria, pricing and policies and adjusting premium factors for changes and exposure.
Commercial umbrella loss experience has been elevated in recent quarters and it's challenging to determine relevant drivers given unusual business activity and general uncertainty as the pandemic waned. For example, the third quarter of 2022 included three very large claims with estimated losses averaging $9 million each, while elevated losses during the second quarter were driven more by a higher frequency of smaller claims. We continue to carefully underwrite commercial umbrella risks and respond promptly to adequately reserve for emerging loss patterns, which we expect will eventually lead to a return to profitability for our commercial umbrella business.
Overall, premium growth was strong and included average renewal price increases for each of our property casualty insurance segments. Cincinnati Insurance appointed agencies continued their outstanding production and our underwriters are focused on working to retain and grow profitable accounts, while addressing areas where they judge pricing is not adequate, segmenting opportunities on a policy-by-policy basis.
Consolidated property casualty net written premiums rose 14% for the third quarter of 2022. That included a 12% increase in third quarter renewal -- written premiums -- renewal written premiums, including a 11% each for our Commercial Lines and Personal Lines insurance segments. Higher renewal premiums included healthy increases for higher levels of insured exposures, that are rising faster due to elevated inflation amounts. For example, our commercial property premium adjustments for rising costs of building materials so far this year are about double the level of last year.
In addition to exposure increases, our Commercial Lines Insurance segment continued to experience estimated average renewal price increases in the mid-single digit percentage range, somewhat higher than the second quarter. Our Excess and Surplus Lines Insurance segment continued in the high-single digit range, also higher than the second quarter. Personal Lines average renewal price increases remained in the low-single digit range with auto a little higher, in homeowner a little lower than the second quarter.
Personal auto insurance for the industry including our book of business, generally needs higher premium rates to achieve profitability. Based on our rate filings that average low-double digit rate increases for policies effective beginning January 1, 2023, we expect the full-year 2023 personal auto written premium effect will be an average premium rate increase of approximately 10%.
The Commercial Lines segment grew third quarter 2022 net written premium by 10% with the combined ratio of 99.0%, reflecting the elevated inflation effects and catastrophe losses, 1.2 percentage points higher than a year ago. For our Personal Lines segment, net written premium grew 15%, mostly from our continued planned expansion of high net worth business produced by our agencies. Its third quarter combined ratio of 104.5% also reflected elevated inflation effects, while the catastrophe loss ratio was 4.1 percentage points lower than last year's third quarter. Our Excess and Surplus Lines segment had a 93.9% combined ratio and continued healthy growth with the third quarter 2022 net written premiums increase of 16%.
Cincinnati Re and Cincinnati Global each experienced significant catastrophe losses from Hurricane Ian, that drove their underwriting loss for the quarter. We expect catastrophe losses of that magnitude from time to time. Our estimate as of September 30 was within our expectations of loss potential for events of Ian's magnitude based on our models. Results of model effects estimating probable maximum losses are disclosed in our annual report on Form 10-K. Cincinnati Re grew third quarter 2022 net written premiums by 51%, while Cincinnati Global grew 21%, each having what we believe are good prospects for future profitability.
Our life insurance subsidiary continue to perform quite well, along with growth in term life insurance earned premiums up 4%, it produced third quarter 2022 net income of $21 million and nearly tripled operating income of a year ago. We continue to use the value creation ratio as our primary measure of long-term financial performance. VCR was negative 8.4% for the third quarter of 2022. Net income before investment gains or losses made a positive contribution, but was again offset by lower investment valuations during the quarter.
Next, Chief Financial Officer, Mike Sewell, will highlight several other points we consider important regarding our financial performance.